—Catherine, I have cleaned the room for you.
—Thanks, you __________it. I could manage it myself.
| A．needn’t do | B．needn’t have done |
| C．mustn’t do | D．shouldn’t have done |
What a nice bike! Where ____ you ____ it?
| A．do ; buy | B．have ; bought |
| C．will ; buy | D．did ; buy |
-- Shall I go and buy more fruit for the party?
-- No, I have already bought 3 baskets. That ____ be enough.
| A．can | B．should | C．may | D．Might |
____ is often the case, the teacher has made the teaching plan before the new term.
| A．Which | B．When | C．What | D．As |
– Would you please lend me some money?
-- ____. I was not born with a silver spoon in my mouth.
| A．No problem | B．No way |
| C．Out of question | D．All right |
The book was written ______ careful observations and detailed studies.
| A．on behalf of | B．regardless of |
| C．on the basis of | D．in relation of |