He kept a little notebook, in which ______ the names and addresses of his friends.
| A．wrote | B．was writing |
| C．was written | D．were written |
.—It is raining cats and dogs.
— ..
| A．So it is | B．So is it | C．Neither it is | D．Neither is it |
Someone is at the door, who is ?
| A．this | B．that | C．it | D．he |
.In the United States, bus travel doesn't cost much as train travel, ?
| A．don't they | B．does it | C．do they | D．doesn't it |
is very clear to everyone that he's round and tall like a tree.
| A．This | B．What | C．That | D．It |
Many people now make a rule to buy cards for their friends before Christmas.
| A．themselves | B．it | C．that | D．this |