—What does “plumber” mean, Alice?
—It means a person fixes sinks and toilets.
| A．which | B．who | C．what | D．whom |
She didn’t know__________she could express her ideas clearly when she was invited to speak at the meeting.
| A．what | B．why | C．how | D．whether |
- Do you have any______?
-Yes, I like chess and drama best.
| A．hobbies | B．jobs | C．problems | D．duties |
- I'm sorry I made a mistake!
-______. Nobody is perfect.
| A．You'd better not | B．You're right |
| C．I don't care | D．Take it easy |
If you ______ smoke, please go outside.
| A．can | B．should | C．must | D．may |
Jim was watching a late night film______ the television went blank.
| A．while | B．since | C．until | D．when |