The reporter said that the UFO ________ east to west when he saw it．

A．was traveling

B．traveled

C．had been traveling

D．was to travel

________ happened to be out that day, so you didn’t find me．

A．I

B．It

C．This

D．You

I ________ with my friend John in London but I didn’t want to disturb him．

A．could stay

B．might stay

C．could have stayed

D．must have stayed

Why!I have nothing to confess．________ you want me to say?

A．What is it that

B．What it is that

C．How is it that

D．How it is that

It wasn’t until nearly a month later ________ I received the manager’s reply．

A．since

B．when

C．as

D．that

People can’t afford to buy expensive things with the prices of daily goods ________．

A．go up

B．gone up

C．to go up

D．going up

It was a pity that the great writer died ________ his works unfinished．

A．for

B．with

C．from

D．of

－How long do you think it will be ________ china sends a manned spaceship to the moon?

－Perhaps two or three years．

A．when

B．until

C．that

D．before

Scientists say it may be five or six years ________ it is possible to test this medicine on human patients．

A．since

B．after

C．before

D．when

The bus ran into the huge stone ________ the driver could stop it．

A．after

B．before

C．since

D．until