When solving the problem a second time, you’d better be more careful ________ you made a mistake.
| A．in case | B．where | C．in which | D．that |
Smoking is the topic we are going to talk at the meeting.
| A．about that | B．about which |
| C．with that | D．in that |
Both villages ____ very beautiful, attracting people from all over the country.
| A．has | B．have | C．are | D．is |
He used tocomputer games, but now he is used to a walk after supper.
| A．play, taking | B．playing, taking |
| C．play, take | D．playing, take |
Our teachers often ask us ____ over the answers carefully before handing in our papers.
| A．go | B．going | C．to go | D．gone |
The window ____ by Tom yesterday. Mr. White is repairing it now.
| A．was broken | B．broke |
| C．is broken | D．breaks |