I should very much like to have gone to the party of theirs, but ________.

[　　]

A．I am not invited

B．I was not invited

C．I have not been invited

D．I had not been invited

－What were you up to when you mother came in?

－I ________ for a while and ________ some reading.

[　　]

A．was playing; was going to do

B．played; did

C．had played; was going to do

D．had played; did

－Remember the first time we met, Jim?

－Of course I do. You ________ in the library.

[　　]

The vegetables didn't taste very good. They ________ too long.

[　　]

－Was the driving pleasant when you went to Mexico last month?

－No, it ________ for four days when we arrived, so the roads were very muddy.

[　　]

－________ you ________ the editor at the airport?

－No, he ________ away before my arrival.

[　　]

A．Have, met; has driven

B．Had, met; was driven

C．Did, meet; had been driven

D．Have, met; had driven

Look at this! I ________ some magazines and ________ this letter.

[　　]

A．was looking through; found

B．am looking through; find

C．looked through; had found

D．had looked through; finding

The plane ________ at the present speed until it reaches the foot of the mountain at about nine o'clock tonight.

[　　]

－Tom, did Mr. Li join you in your discussion?

－No, he ________ but he happened to have fallen ill.

[　　]

－Where do you think ________ he ________ the computer?

－Sorry. I have no idea.

[　　]

A．has; bought

B．/;bought

C．did; buy

D．had; bought