Sorry, I'm late. I________have turned off the alarm clock and gone back to sleep again.
| A．should |
| B．might |
| C．can |
| D．will |
.
________ being very convenient to shoppers, plastic bags also cause serious white pollution.
| A．Because | B．Since | C．While | D．If |
.
It is easy enough to download and copy, but you should at least write ________ by yourself.
| A．anything | B．everything | C．something | D．nothing |
.
I find singing Karaoke ________, for it takes my mind off my work for a while.
| A．being relaxed | B．to relax | C．relaxed | D．relaxing |
.
Don’t cry over your lost friendship any more. It ________ be helped.
| A．mustn’t | B．needn’t | C．shouldn’t | D．can’t |
.
_______ not like Jim to be late for class. He is always on time.
| A．Here’s | B．That’s | C．It’s | D．There’s |