A group of boys walked into the ward ______ in order not to wake up the sleeping patients．

[　　]

A．on the tiptoe　　　B．on tiptoes

C．on tiptoe　　　　　D．on their tiptoes

The boy was not allowed ______ the teachers’office ______ his parents came．

[　　]

Luckily, the books slipping from his grasp didn't seem ______ by the fall．

[　　]

A．to damage　　　　　　B．to have been damaged

C．to be damaging　　　 D．damaged

I like to place my reference books within my ______．

[　　]

A．hard　　　B．touch　　　C．reach to　　　D．reach

Mr White ______ to succeed in swimming across the English Channel．

[　　]

A．was hoped　　　　 B．was thought

C．was expected　　　D．was looking forward to

Was it in this small cottage near the sea ______ the famous artist was born?

[　　]

A．in which　　　B．that　　　C．where　　　D．what

Have you ______ the train has not already left?

[　　]

A．made sure of　　　　B．been sure of

C．made sure that　　　D．made sure about

He ______ his story just where he had left off．

[　　]

A．went on　　　　　 B．went with

C．went on with　　　D．went without

The road to the airport was very busy and we were afraid ______ the plane．

[　　]

A．to miss　　　　　B．to be missed

C．of missing　　　 D．of being missed

He paid the boy $ 10 for washing ten windows, most of ______ hadn’t been cleaned for at least a year．

[　　]

A．these　　　B．those　　　C．which　　　D．that