I will answer the teacher’s question when _______.

A. I ask               B. I will be asked       C. asked          D. I shall be asked

He is very good at carpentering, though _______.

A. he was very young      B. very young    C. he very young      D. is very young

Sugar is not an important element in bread, but flour is _______.

A. unique            B. essential         C. natural        D. adequate

It is well known that Thomas Edison _______ the electric lamp.

A. invented          B. discovered      C. found         D. developed

--I’m sorry, I’m late.

--_______, we have a few minutes left.

A. You don’t sorry    B. Not sorry     C. Never mind       D. You shouldn’t sorry.

--Shall I invite Ann to my birthday party tomorrow evening?

--Yes. It’ll be fine if you______.

-- Aren’t you the manager?    

-- No, and I______

A. don’t want to  B. don’t want to be    C. don’t want be  D. don’t want

--I’ll be away on a business trip. Would you mind looking after my cat?

--Not at all. ______.

 A. I’ve no time    B. I’d rather not     C. I’d like it         D. I’d be glad to

 -- Won’t you have another try?

-- ________.

--I won’t do it any more.   

--_______?

 A. Why not   B. Why don’t do any more   C. Why not do    D. Why don’t