We will never forget those happiest days _______ we spent on the summer camp.
| A．which | B．that | C．when | D．on which |
Must we find out the reason today? - No, you _____.
| A．mustn’t | B．don’t have | C．don’t have to | D．needn’t to |
She uses her car _____________ for driving to work.
| A．the most | B．mostly | C．almost | D．main |
They’re ________little sheep __________ they should be looked after well.
| A．so…that | B．such…that | C．too…to… | D．so that |
I like playing computer games, _____ I don’t have much time for it.
| A．and | B．but | C．for | D．so |
UNICEF wants to make _____ world _____ better place for children.
| A．the; the | B．/; a | C．the; / | D．the; a |