He _____ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.
| A．should | B．must | C．wouldn’t | D．can’t |
----Where did you put the broom,Tom?
-----I _______it behind the door．But now it is gone．
| A．do put | B．do putting | C．did to put | D．did put |
They experimented _____the new medicine _____anima
ls．
A．on; to B by ; on C．with ; on D with; to
Children under six are not ______to school except those of extraordinary intelligence．
A．permitted B．admitted C accepted D．received
three times，but she still couldn’t follow what the old man said．
| A．Having told | B．Having been told |
| C．She had been told | D．Though he had been told |
一 Mom, guess what? I’ve won the 1st prize!
一 This a celebration! Let’s go to prepare a party．
| A．helps out | B．works out |
| C．calls for | D．pays for |