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Help Professor Higgins defend his slightly explosive invention! Select ALL the discourse markers that correctly complete his statement by acknowledging a flaw while emphasizing his ultimate success.
"The time machine does occasionally singe the operator's eyebrows; __________, it represents a monumental breakthrough in quantum physics."
The correct answers are nevertheless, be that as it may, and having said that.
Nevertheless, be that as it may, and having said that are all advanced discourse markers of concession. They are used to accept that the previous statement is true (the singed eyebrows), but to introduce a contrasting statement that reduces its impact (the breakthrough).
On the contrary is incorrect because it is used to flatly deny a previous statement and assert the opposite, rather than concede a point.
Consequently is incorrect because it introduces a result or effect, which does not fit the logic here.