He has no idea what the book is about．He have read it very carefully．
| A．needn’t | B．shouldn’t | C．can’t | D．mustn’t |
Little what you said. I wish you had repeated it!
| A．did I understand | B．I understood |
| C．I did understand | D．have I understood |
He has been to America twice, _____.
| A．so have I | B．so I have | C．I have so | D．so did I |
There must be ____ with the machine.
| A．something wrong serious | B．something seriously wrong |
| C．something serious wrong | D．something wrong seriously |
____ I admire David as a poet, I do not like him as a man.
| A．Only if | B．If only | C．As much | D．Much as |
You’ll have to wait for one more week, ______ the manager will be back from his trip.
| A．before | B．when | C．as | D．until |