Blue whales are ． We should try to protect them．（ ）
A．in timeB．in publicC．in danger
The quiet music makes me relax．（ ）
A．宾语B．状语C．宾补D．定语
The food in the restaurant is delicious．（ ）
A．表语B．宾语C．主语D．谓语
I visited the zoo last Sunday．（ ）
A．主语B．谓语C．状语D．宾语
Steve， you've made a lot of progress in Chinese．
_________．（ ）
| A． |
Good luck |
B． |
Not at all |
| C． |
That's right |
D． |
Thank you |
Excuse me． Could you tell me _____？
In half an hour．（ ）
| A． |
what time does the plane take off |
| B． |
what time the plane takes off |
| C． |
what time did the plane take off |
| D． |
what time plane took off |