In London，dogs and their owners can enjoy _______ hour﹣long free bus tour．
Wow!I hope we can also have such a service in Dongying．（ ）
A．aB．anC．/D．the
No one can tell when they．
When they _______, I'll let you know at once．（ ）
| A． |
return； will arrive |
| B． |
will return；reach |
| C． |
will return；arrive |
It has been two months since my father _______ for Italy．（ ）
| A． |
was left |
B． |
left |
C． |
leaves |
I'm sorry， mom． I made a mistake in the exam．
_______．Be careful next time．（ ）
| A． |
You'd better not． |
| B． |
It's too terrible． |
| C． |
It doesn't matter． |
The policeman asked the little boy if _______ his home．（ ）
| A． |
he could find |
| B． |
could he find |
| C． |
he can find |
We should do what we can _______ those people when they are in trouble．（ ）
| A． |
to help |
B． |
helped |
C． |
help |