The old professor has such a bad memory that he looks for the watch while he is ___.
| A．having it on | B．having on it | C．wearing it | D．putting it on |
Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
| A．becomes | B．became | C．has become | D．had become |
The train was__________ to arrive at 11:30,but was an hour late.
| A．about | B．likely | C．certain | D．supposed |
Can you imagine what a girl will look like___________ she comes across a rat in her room?
| A．now that | B．though | C．in case | D．if |
--It starts raining outside.
--Oh, ____________!
| A．so it is | B．so does it | C．it does so | D．so it does |
He felt rather __________ that she should drive the car at such a____________ speed.
| A．frightening, frightening | B．frightened, frightened |
| C．frightening, frightened | D．frightened, frightening |