While I_______ a detective story, someone_______ at the door．
A. read, was knocking
B. read, knocked
C. was reading, knocked
D. was reading, was knocking
The teacher didn’t leave the classroom building until the papers _________ in the end.
A. was put off B. was put out
C. were put on D. were put away
His sister wanted to have him _____ the radio, but he had had it _____ already.
A. repair, fix B. to repair, fix
C. repaired, to fix D. repair, fixed
—Why not go camping this weekend? —_______.
A. You are right B. Good idea
C. That's right D. Never mind
Unluckily, John’s father __________murder when he was in his forties.
A. was charged with B. was wanted on
C. was guilty with D. was involved of
The explorer insisted ________ his advice was of ________.
A. on, value B. that, value
C. on, valuable D. that, valuable
