These experiences ______ me _____ the drug’s harmful effects.
A. are convinced; by B. convinced; of C. were convinced; by D. convinced; at
— Did Alan enjoy seeing his old friends yesterday?
— Yes, he did. He _____ his old friends for a long time.
A. didn’t see B. wouldn’t see C. hasn’t seen D. hadn’t seen
— Have you handed in your schoolwork yet?
— Yes, I have. I guess it ______ now.
A. has graded B. is graded C. is being graded D. is grading
At the end of the meeting, it was announced that an agreement ______.
A. has been reached B. had been reached C. has reached D. had reached
Please keep me _____ what happens.
A. informing by B. informing of C. informed of D. informed by
______ the chairman of the council, the vice chairman does duty for him.
A. Absent from B. In the absence of C. Present from D. In the presence of