Sometimes the police wear casual clothes to ____ special tasks.
| A．carry off | B．carry on | C．carry with | D．carry out |
--___did you visit on vacation? --I visited my uncle.
| A．Where | B．What | C．Who | D．How |
___do you like better, this one or that one?
| A．What | B．Which | C．Who | D．How |
___he is very young, ___he can do many things.
| A．Although; but | B．Although; / |
| C．/; although | D．But; although |
I didn’t go to the mountains ___the bad weather.
| A．so | B．because of | C．because | D．but |
He looks the same __ _his brother ___some ways.
| A．as; as | B．in; in | C．from; at | D．as; in |