—How many letters have you got from your online friends since last year?
—_______. We’re just chatting with each other when we’re free.
| A．Nothing | B．None |
| C．No | D．No one |
The scientists ________ on the new medicine for two years. They will succeed in no time.
| A．work | B．are working | C．have worked | D．will work |
That rude man seldom uses kind words, ________?
| A．does he | B．isn’t he | C．was he | D．hasn’t he |
The policeman caught the drunk driver, but he didn’t remember ________ the old lady.
| A．knock down | B．to knock down | C．knocked down | D．knocking down |
After the conversation with the teacher, Jenny’s mother looked a little ________.
| A．happiness | B．happier | C．happy | D．happily |
We just hope that Tom will bring ________ good news back home this time.
| A．a few | B．some | C．many | D．little |