By the time the teacher ___________, the students _________ the ...

★ Past Perfect Tense

By the time the teacher ___________, the students _________ the classroom. (arrive, already leave)

A. had arrived / had already left.

B. arrived / had already left.

C. had arrived / already left.

Preview next quiz:

I _____________ Max for a year before I realized he spoke four languages. (know)

A. known

B. had known

C. had knew