The second C919 large passenger plane its first flight at Shanghai Pudong International Airport on December 17th， 2017．（ ）
A．completesB．completed
C．has completedD．was completing
They ________on the sofa when the telephone_______．（ ）
| A． |
sit； rang |
| B． |
were sitting； rang |
| C． |
sat； was ringing |
________song the little girl sings!（ ）
| A． |
What a sweet |
| B． |
How a sweet |
| C． |
What sweet |
I think you'll miss the train______you hurry up．（ ）
| A． |
if |
B． |
and |
C． |
unless |
A friend in need is a friend indeed． All of us need a friend _______（ ）
| A． |
to talk with |
| B． |
talking with |
| C． |
to talk |
It's not good for you to smoke so much， you'd better________．（ ）
| A． |
give up it |
| B． |
give them up |
| C． |
give it up |