9. “Do you have any questions ________ clear to you?” the teacher asked.
| A．which are not | B．that isn’t | C．not to | D．To |
While she _________ TV in the sitting room, the bell________.
| A．watches, rings | B．is watching, rang | C．was watching, rang | D．watched, was ringing |
.--Can I help you? --Yes. I bought this computer here yesterday, ,but it ______ now.
| A．didn't work | B．won't work | C．can’t work | D．doesn't work |
I _______ to bed until my grandma came back home.
| A．didn't go | B．went | C．had gone | D．have gone |
His sister read the picture- book three times yesterday, ___________.
| A．so he did | B．she did so | C．so did he | D．so ~lid her |
--I have seen the film “Titanic” already.
--When _________ you _______ it?
| A．have, seen | B．will, see | C．did, see | D．had, seen |