—Does he often ask you for help?
—Oh，no，only________.
| A．all the time | B．at one time |
| C．at a time | D．at times |
You needn’t take your shoes off when you enter someone’s house in Australia , _____ , of course , they’re very dirty .
| A．before | B．since | C．when | D．unless |
.A pair of glasses_______ on the table , but the glasses _______ yours.
| A．is; aren’t | B．are; isn’t | C．is; isn’t | D．are; aren’t |
With all the problems ______, the manager went home and had a good rest.
| A．solved | B．to solve | C．solve | D．solving |
. --- ________ for the glass! It’s too dangerous.
--- It’s OK. I’m wearing shoes .
| A．Carry out | B．Watch out | C．rule out | D．work out |
----You haven’t said a word about the design ,Mike. What’s your idea?
----I’m sorry I _______ about something else just now.
| A．am thinking | B．thought | C．was thinking | D．had thought |