I don't know ________．

A．what happened to him

B．what did he happen

C．what he happened

D．what was the matter

While I was cleaning my room, my aunt ________．

A．reached

B．got

C．arrived

D．got out

He lives ________, but he never feels ________．

A．alone, lonely

B．lonely, alone

C．alone, alone

D．lonely, lonely

________ hard work it is today!

A．How

B．How a

C．What a

D．What

Johnny, you ________ play with the knife, you ________ hurt yourself．

A．won't; can't

B．mustn't; may

C．shouldn't; must

D．can't; shouldn't

I didn't see Nancy at the meeting yesterday．Do you know ________ ?

A．what happened

B．why didn't she come

C．when would she come

D．where she has been

What a nice girl! She always does what she can ________ others．

A．helping

B．help

C．to help

D．helps

How long do you think it is ________ he got the news?

A．before

B．when

C．since

D．after

Boys and girls, don't put your bags on the chairs, ________ ?

A．don't you

B．don't they

C．will you

D．will they

Sadly, when I arrived she ________ , so we only had time for a few words．

A．just left

B．has just left

C．was just leaving

D．had just left