Carelessness always contributes _______ car accidents. Therefore, drivers are advised to concentrate their attention _______ driving.
| A．for; to | B．to; on | C．with; on | D．in; to |
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 |
We finally bought several books by Shakespeare, ______ is one.
| A．which of them | B．which of whose | C．of which this | D．and of them |
Without facts , a person can’t form a correct opinion , for he needs to have actual knowledgehis thinking .
| A．which to be based on | B．on which to base |
| C．which to be based | D．which to base |