﹣Let's go to the movies this weekend．
﹣Sorry， but my parents and I have decided________to Dongjiang Lake for camping．（ ）
A．goB．goingC．to go
Look at the sign "No swimming"， it warns us ________ in the lake．（ ）
| A． |
to swim |
| B． |
not to swim |
| C． |
swimming |
In February， 2020， many doctors and nurses ________ to Wuhan to save the patients．（ ）
| A． |
was sent |
B． |
were sent |
C． |
are sent |
There ________ something wrong with my mobile phone． It can't work these days．（ ）
| A． |
must be |
B． |
can't be |
C． |
may be |
________ you keep moving， you'll never reach the top of the mountain．（ ）
| A． |
If |
B． |
Although |
C． |
Unless |
I asked him a question， but he didn't reply．
Maybe he ________about something else while you were asking．（ ）
| A． |
thought |
| B． |
thinks |
| C． |
was thinking |