21.—It is raining cats and dogs.
22. — ..
23.
|
A．So it is |
B．So is it |
C．Neither it is |
D．Neither is it |
19..Someone is at the door, who is_________?
20.
|
A．this |
B．that |
C．it |
D．He |
17..In the United States, bus travel doesn't cost much as train travel, ?
18.
|
A．don't they |
B．does it |
C．do they |
D．doesn't it |
15.__________is very clear to everyone that he's round and tall like a tree.
16.
|
A．This |
B．What |
C．That |
D．It |
14.Many people now make_________a rule to buy cards for their friends before Christmas.
|
A．themselves |
B．it |
C．that |
D．This |
13.I think it a great honour_______to visit your country.
|
A．to invite |
B．inviting |
C．having invited |
D．to be invited |
