I suppose he ought to have known that,________?
| A．don’t I | B．oughtn’t he | C．do I | D．ought he |
— I really don’t know how to thank you enough.
— _____.
| A．No problem | B．Think nothing of it |
| C．Not at all | D．It doesn’t matter |
While I was making the model plane，my little nephew kept asking me questions with great ______ .
| A．wonder | B．patience | C．doubt | D．curiosity |
She is a quiet girl at school，but sometimes she _____ be very naughty.
| A．should | B．would | C．can | D．will |
— Did a letter come for me this morning?
— Yes. _____ came for you.
| A．That | B．It | C．One | D．The letter |
-- How do you find the performance by the pianist?
-- ______. I can't think too highly of it.
| A．It's really wonderful | B．It all depends |
| C．No one knows for certain | D．It is not my cup of tea |