甾体激素用四氮唑显色测定时须在碱性条件下进行，适用的碱是A．碳酸钠B．三乙胺C．氢氧化钠D．氢氧化

— Would you mind doing me a favor now？

—____________

A. No, of course.

B. Yes, help yourself.

C. No, of course not.

D. Sure, go ahead.

Would you do me ______ favour？ Do me ______ favour to turn on the TV.

A．a, the

B．the, a

C．× ,a

D．the, ×

Would you please _____ me a favour by lending me your bicycle for a few days？

A.make

B.do

C.have

D.help

He is learning to playing _______ rnguitar.

A、a

B、an

C、the

D、/

He is learning to playing _______ guitar.

A、a

B、an

C、the

D、/

——Would you do me a favour？

— ________ .

A.It’s good

B.That’s OK

C.I’m glad to

D.No problem

Would you mind (sit) _____ next to me？

—Would you do me a favour and give me a ride？ —______.

A．It's my pleasure

B．No trouble

C．That's all right

D．With pleasure

Would you mind telling me the possibilities of my success ______？

A．forward

B．in 'advance

C．primarily

D．now and then