A cool rain was falling ____ with snow causing heavy traffic.
| A．mixed | B．mixing | C．to mix | D．having mixed |
. Man must produce more grain to support the _____ growing population on earth.
| A．already | B．just | C．ever | D．yet |
The theory wasn’t accepted by many people when it was first ____, but it proved to be true as time went by.
| A．put forward | B．relied on | C．set out | D．given off |
He is good at maths and it won’t be long ____ he works out the problem.
| A．since | B．until | C．before | D．when |
—Learning a language isn't easy. It takes time.
—I agree. _______. There's no short cut.
| A．All roads lead to Rome | B．Rome wasn't built in a day |
| C．Practice makes perfect | D．Slow but sure wins the race |
His knowledge of French is ___________ for the job, although he was not fluent in the language.
| A．accessible | B．accurate | C．attractive | D．adequate |