They were surprised that a child should work out the problem ________ they themselves couldn’t．

A．once

B．if

C．then

D．while

The company is ________ to these new developments．

A．aware

B．conscious

C．awake

D．wake

Mary was ________ then and she heard everything her parents said．

A．very awake

B．too sleepy

C．wide awake

D．hardly awake

The girl ________ his brother ________ receiving a doctor’s degree(博士学位)．

A．congratulations; in

B．congratulated; on

C．celebration; in

D．celebrated; on

She ________ medical treatment now so she can’t ________ guests．

A．received; receive

B．is receiving; receive

C．accepted; accept

D．is accepting; accept

She ________ a gift from the club but she didn’t ________ it．

A．received; accept

B．accepted; receive

C．received; received

D．accepted; accept

You will ________ a warm welcome when you come to China．

A．accept

B．receive

C．give

D．offer

There is ________ that he’ll be released without being charged．

A．chances

B．an opportunity

C．a good opportunity

D．some chance

I met Tom ________ yesterday．

A．by opportunity

B．by chance

C．in opportunity

D．in chance

I’d like to ________ this opportunity to thank everyone for their hard work．

A．take

B．give

C．miss

D．lose