________ is your name?

A．What

B．What's

C．How

D．How's

Look! That's ________ brother．

A．my

B．a my

C．my a

D．you

How often ________ your father go fishing?

A．do

B．does

C．is

D．are

－Is David at school today?

－No, he is at home ________ he has a bad cold．

A．because

B．if

C．so

D．until

Where is ________ sock? I can't find it．

A．other

B．the other

C．others

D．another

－________ do you write to your pen-friend?

－Once a month．

A．How long

B．How many

C．How often

D．How much

She always practices ________ the piano．

A．playing

B．to play

C．play

D．plays

Let's go on ________ picnic．

A．a

B．the

C．/

D．our

________ activities do you enjoy?

A．How much

B．How many

C．How long

D．How often

Doing exercise can help us to stay ________．

A．outdoor

B．indoor

C．healthy

D．healthily