He was told that it would be at least three more months ______ he could recover and return to work.
A. when B. before C. since D. that
To their surprise, they found the lecture given by the famous professor easy ______.
A. to be understood B. to understand C. understanding D. understood
It was the first time ________ I ________ face to face with a thunder storm.
A. when / had come B. that / have come C. when / came D. that / had come
Hurry up! The train______. You know it______ at 8:30 am.
A. leaves; leaves B. is leaving; leaves C. leaves; is leaving D. is leaving; is leaving
He spoke about the country as if he had been there, but ________ he had never.
A．frequently B．gradually C．actually D．finally
This is the very reason ______ he gave for his coming late to the meeting.
A. that B. which C. as D. why
