1 . I don’t know 　　　　or not he will come this afternoon.

A．if

B．that

C．whether

D．weather

2 . Did Bob catch the plane last weekend? Could you tell me? (改为含宾语从句的主从复合句)
Could you tell me ________ Bob ________ the plane last weekend?

3 . Make sure_________ Mr. Smith will come to our party tomorrow.

A．that

B．when

C．if

D．where

4 . The man refused to say sorry to me, ________it was his mistakes.

A．because

B．when

C．if

D．even though

5 . Mother was cooking in the kitchen________ Jack was watching TV in the room.

A．if

B．as

C．when

D．while

6 . Everyone is born with the ability                . But                or not you can do this well depends on your learning habits.

A．of learning; weather

B．to learn; whether

C．for learning; if

7 . Do you know________there will be a soccer match on CCTV5 tonight?

A．that

B．if

C．where

8 . — Did you have a good time yesterday?
— Yes. We sang        danced until late at night.

A．but

B．if

C．and

D．so

9 . I wonder __________ there is anything important in today’s newspaper.

A．that

B．if

C．where

D．how

10 . I wonder _____ these are Jim’s glasses.

A．that

B．which

C．if