Smiles around the world _____ be false, ______ other feelings like anger, fear or worry.
| A．must; hide | B．must; hiding | C．can; hide | D．can; hiding |
--- Can he ________ the computer company?
--- I’m afraid it’s beyond his ability.
| A．take charge of | B．take the place of |
| C．take the charge of | D．take place of |
A number of findings in the report are _______ of being noted.
| A．worth | B．worthy |
| C．worthwhile | D．worth while |
They were already accustomed ________, so no one complained.
| A．to wait | B．to waiting |
| C．not to wait | D．to not waiting |
I ______ have watched that movie --- it will give me horrible dreams.
| A．neednt | B．shouldn’t |
| C．couldn’t | D．mustn’t |
The police say radio signals were probably used to set the bomb __________.
| A．about | B．down | C．off | D．out |