It is said that potato chips ________ by mistake about a hundred years ago．

A．invent

B．invented

C．are invented

D．were invented

－I ________ stay up late．

－Really? I didn't．But I ________ working in the night now．

A．used to; used to

B．was used to; used to

C．used to; am used to

D．was used to; am used to

－I hear that Liu Xiang will come to Shenyang and give a talk．

－Really? Do you know ________?

A．what will he talk about

B．where will he give a talk

C．how will he come

D．when he will arrive

－This book is very interesting．

－Yes, it ________ by the famous writer－Andersen．

A．was written

B．read

C．bought

D．borrowed

－What kind of film do you like?

－I like the film ________ is funny．

A．who

B．that

C．when

D．where

－How can I improve my spoken English?

－You have to practise ________ as much as you can．

A．writing

B．speaking

C．to speak

D．to write

－How do you study for a test?

－I study ________ working with friends．

A．for

B．to

C．in

D．by

－When did you ________ yesterday? Were you late for the meeting?

－Luckily, when I ________ there, it had just begun．

A．reach; got to

B．get; arrived

C．reach; arrived in

D．arrive; got

－________ have you been away from your hometown?

－For about 12 years．

A．How soon

B．How long

C．How far

D．How often

－Do you believe ________ you read in newspaper?

－No, I only believe some of them．

A．something

B．anything

C．nothing

D．everything