A good interpersonal relationship can help teawork,which ________ benefits a company's development

A．in fact

B．in return

C．in turn

D．in practice

The weather was so bad that we had to ________．Our journey became a failure．

A．turn back

B．turn away

C．turn about

D．turn round

He hurried out and ________ the chair．

A．knocked up

B．knocked off

C．knocked back

D．knocked over

There were signs here and there, ________ visitors to look out for ________ rocks．

A．warning; fallen

B．warned; falling

C．to warn; fallen

D．warning; falling

I don't doubt ________ he will pass the tomorrow's exam．

A．that

B．whether

C．if

D．which

We were ________ on our way to the airport because of the heavy snow．

A．held up

B．held out

C．held on

D．held with

________ all the required papers, he didn't answer the questions fluently in class．

A．Having not read

B．Not having read

C．Not read

D．Not to read

When he reached the final line,everyone ________ laughing．

A．burst into

B．burst out

C．burst up

D．broke out

The two elderly sisters, ________ so long, held each other．

A．being separated

B．having been separated

C．to be separated

D．had been separated

Harry Potter stories are ________ both the teenagers and adults．

A．appealing to．

B．appeal to．

C．allergic to

D．appealing for