Gina has had three jobs since college, and she still ________ decide what she wants to do．

A．can't

B．mustn't

C．shouldn't

－________

－Good idea．Where do we play?

A．Do you like tennis?

B．Let's play tennis．

C．Why do you like tennis?

Mary got up late this morning, ________ she didn't catch the first bus．

A．because

B．so

C．for

December is ________ month of the year．

A．the twelfth

B．twelve

C．the twelve

If you can't get to sleep, then get up and try to do something, ________ lying in bed．

A．and

B．or

C．instead of

Look at that red car! I think it's ________ in the world．

A．more beautiful

B．so beautiful

C．the most beautiful

Mary's answer is very different from ________

A．I

B．my

C．mine

He gets up early in ________ morning, but goes to bed late at ________ night．

A．the; a

B．/; the

C．the; /

There are some ________ in the basket．

A．rice

B．tea

C．eggs

Personal computers ________ in 1976．It has changed the whole world．

A．have been invented

B．was invented

C．were invented

D．are invented