Hi， Daniel． You didn't attend the chess class last night．
Oh， I _____my son's model plane．（ ）
A．am repairingB．repair
C．have repairedD．was repairing
Why did the car hit the boy？
Because the driver ______ on the phone at that time．（ ）
| A． |
talk |
B． |
is talking |
| C． |
was talking |
D． |
have talked |
_______sweet the flowers smell in spring！
Yes，many tourists come to enjoy them every day．（ ）
| A． |
What |
B． |
How |
C． |
What a |
D． |
How a |
The world's population（人口）is getting larger and larger，so scientists are trying to _______ new ways to solve the food problem．（ ）
| A． |
catch up with |
B． |
keep up with |
| C． |
come up with |
D． |
make up with |
It was late．She opened the door______ because she didn't want to wake up her parents．（ ）
| A． |
heavily |
B． |
loudly |
C． |
quietly |
D． |
angrily |
Who helped you clean the room yesterday？
_______．I did it all by myself．（ ）
| A． |
Somebody |
B． |
Anybody |
C． |
Nobody |
D． |
Everybody |