Help the teenager text their best friend about last night's disastrous stealth mission by matching the appropriate time words to the blanks.

I successfully disarmed the front door security system before my parents woke up.

I was tiptoeing across the dark living room when the family dog suddenly attacked my shoelaces.

My dad just stood in the hallway sipping his coffee while I tried to explain why I was crawling on the floor at 2 AM.

I successfully disarmed the front door security system before my parents woke up.

"Before" shows that the disarming happened earlier than the parents waking up.

I was tiptoeing across the dark living room when the family dog suddenly attacked my shoelaces.

We use "when" to introduce a short, sudden action ("attacked") that interrupts a longer, continuous background action ("was tiptoeing").

My dad just stood in the hallway sipping his coffee while I tried to explain why I was crawling on the floor at 2 AM.

We use "while" to talk about two actions happening simultaneously. The dad was sipping coffee at the exact same time the teenager was making up excuses!