Help a stressed college student polish their formal email to the university administration. Drag the correct words into the blanks.
Dear Dean of Students,
The professor to whom I submitted my final essay claims he never received it.
Furthermore, the student whose laptop crashed during the midterm exam was given an extension, but I was not.
I am writing to clearly explain the reason why I believe this grading policy is unfair.
Sincerely, A Very Tired Freshman
The professor to whom I submitted my final essay claims he never received it.
In formal English, we use whom as the object of a preposition (like "to").
Furthermore, the student whose laptop crashed during the midterm exam was given an extension, but I was not.
We use whose to indicate possession (the laptop belongs to the student).
I am writing to clearly explain the reason why I believe this grading policy is unfair.
We use why after the noun "reason" to introduce a relative clause explaining a cause.
Relative clause
- ✅ The man who called is my uncle. — restrictive (essential: which man?)
- ✅ My uncle, who lives in Paris, called. — non-restrictive (extra info, commas)
- ❌ My uncle that lives in Paris — wrong (that can't introduce non-restrictive)
- ✅ The book that I read = The book I read — restrictive (pronoun optional)
Relative clauses modify nouns using who/whom/whose/which/that or where/when/why. Restrictive = essential, no commas, that OK. Non-restrictive = extra, needs commas, uses which/who (never that).
Rule: if you can remove the clause and still know which noun is meant → non-restrictive (commas). If removing it makes the noun ambiguous → restrictive (no commas).
Pronoun
- ✅ between you and me — ❌ between you and I (objective case after preposition)
- ✅ its colour — ❌ it's colour (it's = it is)
- ✅ She did it herself. — reflexive pronoun
- ✅ The person who called… — relative pronoun
Pronouns replace nouns: personal (I/me/my), demonstrative (this/that), relative (who/which/that), interrogative (who?/what?), reflexive (myself), indefinite (everyone/nobody). They carry case that nouns have lost.
Trap: pronouns are where English case still matters: I vs me, who vs whom, its vs it's. Get these wrong and it's instantly noticeable.
Possessive
- ✅ its tail — ❌ it's tail (it's = it is, not possessive)
- ✅ the students' essays — plural possessive (apostrophe after the s)
- ✅ Sarah's book — singular possessive ('s)
- ✅ a friend of mine — possessive pronoun (not my)
Possessives show ownership: nouns use 's (singular) or s' (plural ending in s). Pronouns have special forms: my/mine, your/yours, his, her/hers, its, our/ours, their/theirs.
Trap: its (possessive) vs it's (= it is). Possessive pronouns NEVER use apostrophes — that's the opposite of nouns.
B1 | Intermediate
- ✅ If I had more time, I would travel more. — second conditional
- ✅ The bridge was built in 1920. — passive voice
- ✅ She said she was tired. — reported speech with backshift
- ✅ Although it rained, we enjoyed the trip. — complex sentence with concession
These are B1 patterns — the CEFR intermediate level. At B1 you link ideas, use passive voice, handle reported speech, and manage second conditional — enough for travel, work basics, and everyday independence.
Marker: if you can explain why something happened and follow a news story, you're B1.
Medium
- If I were you, I would apologise. — one rule (second conditional), but distractors like was tempt you
- Answers require active thought, not instant pattern recognition
- Vocabulary and context are realistic, not artificially simplified
- Usually tests one rule, but the wrong answers are plausible
Medium marks middle-difficulty challenges: A2–B1, one rule tested, but with realistic distractors that require genuine understanding.
Use "Medium" when Easy feels too obvious but Hard feels overwhelming. This is where most productive learning happens — the sweet spot of difficulty.