Are you going camping this weekend？
I'm not sure ________ the road to the mountains will be closed because of the heavy rain．（ ）
A．thatB．whyC．whetherD．which
Yunnan is very beautiful． I ___ there last year．
Yes， I___ there twice．（ ）
| A． |
went； have gone |
B． |
went； have been |
| C． |
have gone； went |
D． |
have been； went |
Listen! I think it____ be Mr． White singing in the office．
No， it ___ be him． He left for London just now．（ ）
| A． |
must； mustn't |
B． |
may； mustn't |
| C． |
must； can't |
D． |
can； can |
The population of China is much than that of England．（ ）
| A． |
larger |
B． |
largest |
C． |
more |
D． |
large |
Have you heard of Lin Zexu and Zhan Tianyou？
Of course． They are our national （ ）
| A． |
hero |
B． |
heros |
C． |
heroes |
D． |
hero' s |
Whose iPad is this？
I think it's ___． She was looking for it everywhere．（ ）
| A． |
she's |
B． |
her |
C． |
she |
D． |
hers |