Scientists have to work hard to keep _____ with modern discoveries and developments.
| A．company | B．track | C．touch | D．pace |
____ you may be right , I can’t agree completely.
| A．While | B．As | C．If | D．Since |
The discovery of new evidence led to _______ .
| A．the thief having caught | B．catch the thief |
| C．the thief being caught | D．the thief to be caught |
— _____ is the best football player in your city?
—Jerry.
| A．Do you think who | B．Do you think whom |
| C．Who do you think | D．Whom do you think |
When it comes to talking about football, his favorite sports, with David, any time will _____ him.
| A．suit | B．fit | C．match | D．equal |
_____ to get there before noon, the postman set off in spite of the heavy fog.
| A．Promising | B．To promise | C．Having promised | D．Promised |