________ is known to everybody, the moon travels round the earth once every month．

A．It

B．As

C．That

D．What

－Have you moved into the new house?

－Not yet．The rooms ________．

A．are being painted

B．are painting

C．are painted

D．are having painted

Selecting a mobile phone for personal use is no easy task because technology ________ so rapidly．

A．is changing

B．has changed

C．will have changed

D．will change．

－Do you know our town at all?

－No, this is the first time I ________ here．

A．was

B．have been

C．came

D．am coming

My brother ________ while he ________ his bicycle and hurt himself．

A．fell, was riding

B．fell, were riding

C．had fallen, rode

D．had fallen, was riding

They asked me to have a drink with them．I said that it was at least ten years since I ________ a good drink．

A．had enjoyed

B．was enjoying

C．enjoyed

D．had been enjoying

－Where ________ the recorder?I can't see it anywhere．

－I ________ it right here．But it's gone．

A．did you put, have put

B．have you put, put

C．had you put, was putting

D．were you putting, have put

Don't get off the bus until it ________

A．has stopped

B．stopped

C．will stop

D．shall stop

Old McDonald gave up smoking for a while, but soon ________ to his old ways．

A．returned

B．returns

C．was returning

D．had returned

－How are you today?

－Oh, I ________ as ill as I do now for a very long time．

A．didn't feel

B．wasn't feeling

C．don't feel

D．haven't felt