while intelligent people can often ____ the complex ,a fool is more likely to complicate the simple .
| A．sacrifice | B．substitute |
| C．simplify | D．survive |
“Do you think he is lazy?” “I _________ so once, but I don’t now.”
| A．may have thought | B．can have thought | C．may think | D．might think |
| A．may not be | B．won’t be | C．couldn’t be | D．mustn’t be |
Mike is often absent from class.” “Tell him he _________ answer for it if he goes on behaving like that.”
| A．shall | B．will | C．would | D．can |
He tried to ________ in Japanese.
| A．understand himself | B．make himself understanding |
| C．make himself understood | D．make to understand |
---- Is Mary coming to the concert?
---- I think ________.
| A．yes | B．it | C．that | D．so |