— Why didn't you stop her going swimming alone?
— She had left the room _____ I had time to do it．
| A．after | B．before | C．till | D．as |
________ having fun with friends, travelling around the world will be another way to relax and learn.
| A．Apart from | B．Because of | C．Beside | D．Except for |
Chinese people place a person’s family name before the given name, _______ people in many other countries do the opposite.
| A．but | B．and | C．however | D．while |
----- Sorry to have knocked you down.
----- ________. You didn’t mean to, did you?
| A．Forget it. | B．No problem. | C．All right. | D．Don’t say so. |
Not until they left school ______ how much their teachers loved them and helped them.
| A．they realized | B．had they realized | C．they would realize | D．did they realize |
. Although the teacher didn’t mention any names, everybody in the class knew who he was ________.
| A．attending to | B．turning to | C．referring to | D．talking to |