You_____explaining these rules very clearly.
A. be
B. am
C. are
D. is

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Perfect Tenses › ViewWhen do we use the Future Perfect tense?
A. to express a recent past action completed just before the time of speaking
B. to express an action repeated several times in the past
C. to express a past action in an indefinite past time
D. to express an action that will be completed at some point in the future
Tenses › View
While I _____ through some old papers, I _____ this photograph of your brother.
A. am looking / have found
B. looked / had found
C. was looking / found
D. had looked / would find
E. have been looking / find
Tenses › ViewLiam didn’t pass his exam because he _______ answer half of the questions.
A. couldn’t
B. shouldn’t
C. wouldn’t
Grammar › View
Read and complete: I’ve _____ to many countries.
A. Flown
B. Flew
C. Flyed