Your mother ______ , however, say that to us that day.

A. does  　　 B. did  　　　C. is doing  　 D. was doing

You will succeed in the end ____ you give up halfway.

A. even if　　　　　　　　　 B. as though

C. as long as　　　　　　　 D. unless

Peter was so excited ________ he received an invitation from his friend to visit Chongqing.(2009重庆高考题)

A．where　　　　 B．that

C．why　　　　　 D．when

Children who are not active or 　　　 diet is high in fat will gain weight quickly.

A. what　　　　 B. whose　　 C. which　　　　 D. that

When chatting with a stranger on the Internet, bear in mind______ he could be anybody, for you can’t see him _________.

A. that; in particular　　　　　　　 B. that; in person

C. what; in detail　　　　　　　　　 D. \ ; in public

I tried to ______ in my speech we were all grateful for his help.

　 A. speak　 B. tell　 C. express　 D. convey

What must be done if wildlife protection is to s_______.

It was in the room ________ he lived ________ we held the meeting.

A. that, that 　 B. where, that

C. that, where 　 D. where, where