______I went to Guiling,I was fascinated by its natural scenery.
| A．The first time | B．At first | C．At the first time | D．For the first time |
Not only ____________ vital for reducing fever and helping stop pain, but there are also other things that aspirin can help with.
| A．has aspirin proved | B．did aspirin prove |
| C．aspirin proved | D．had aspirin proved |
It was not until 1938 _________ the first colour TV programme was broadcast.
| A．which | B．that | C．when | D．on which |
You can borrow my car ________ you promise not to drive too fast.
| A．unless | B．even if | C．in case | D．as long as |
We were told not to touch the equipment in the laboratory unless ________.
| A．allowed to do | B．allowing to do | C．allowed to | D．allowing to |
If you cannot have a good command of grammar as well as precise usage of each word you’ve learnt, it is ________ for you to use English flexibly.
| A．out of trouble | B．out of habit |
| C．out of the limit | D．out of question |