Tom is always careless with his schoolwork．Could you help him？
No problem！I think he _______ to think twice before starting．（ ）
| A． |
should be told |
B． |
shouldn't be told |
C． |
should tell |
Gina used to live in the countryside with her parents， but now she is used to ________with her classmates at school．（ ）
| A． |
live |
B． |
living |
C． |
lived |
Do you know that we have already made great progress in 5G？
Oh， ________exciting news!（ ）
| A． |
how |
B． |
what an |
C． |
what |
Tom． together with his friends， often________ to the old people's home to cheer the old up．（ ）
| A． |
go |
B． |
going |
C． |
goes |
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 |