—Why! I ____ get you on the phone．

— We ______ basketball on the playground when you phoned．

A．didn’t; must have been playing                     B．didn’t; must be playing

C．couldn’t; must have played                          D．couldn’t; must be playing

It is reported that great _______ made to look into the case have _________．

A．attentions, paid back                       B．efforts, paid off

C．troubles, paid for                            D．cares, paid in

—Why didn’t you go to see the movie?

—_______ the whole story, I decided not to see it．

A．Being told       B．I had been told         C．Having told          D．Having been told

—______was it ______ they discovered the entrance to the underground palace?

—Totally by chance．

A．How, that       B．What, that          C．When, when        D．Where, that 

After the new technique was introduced, the factory produced ______ cars in 2004 as the year before．

A．as twice many        B．twice as many        C．as many twice        D．twice many as

Now I’ve been out of _______ work for weeks, I’ve joined the ranks of _______ unemployed．

A．the; /                    B．the; the                     C．/; the                   D．/; an

—Where did you get to know her?

—It was on the farm _______ we worked together．

A．where        B．when        C．that          D．which

_______ how to operate the machine, the young man started it like a skilled worker．

A．Instructing                            B．Being instructed

C．Having instructed                D．Having been instructed

They had a pleasant chat _______ a cup of the tea．

A．for        B．with       C．during         D．over

How long do you think _______ the Microsoft brings out a new product?

A．it will be before                B．will it be until

C．will it be when                    D．it will be that