Mrs Pattis went to the station to meet her friend, but missed him in crowded．Here“missed”means ________．

A．failed to hit

B．failed to catch

C．failed to meet

D．failed to hear

This text is ________ more difficult than that one．

A．little

B．a little

C．a bit

D．B and C

An airship flies ________ an average speed of two miles a minute．

A．at

B．on

C．with

D．by

A car ran ________ at full speed．

A．pass

B．past

C．passing

D．passed

I missed the last train, ________ that I had to wait until next Thursday for another．

A．saying

B．meaning

C．showing

D．meant

According to a recent U．S．survey, children spend up to 25 hours a week ________ TV．

A．to watch

B．to watching

C．watching

D．watch

Would you please ________ me ________ these books?

A．help; carrying

B．to help; carrying

C．to help; carry

D．help; carry

________ you don’t upset any of them．

A．Be sure about

B．Be sure of

C．Make sure that

D．Feel sure

You’d better ________ inside．There might be snakes．

A．not to go

B．not going

C．not go

D．go not

They produced 20％ ________ grain this year than they did last year．

A．much

B．a great deal

C．a lot

D．more