As the saying goes, practice makes perfect, ______is only by using English as often as possible can you learn English well.
| A．which | B．as | C．that | D．this |
You have to know ________ you're going if you are to plan the best way of getting there.
| A．what | B．that |
| C．where | D．who |
It was so noisy that we hear ourselves speak.
A. couldn’t B. shouldn’t
C. mustn’t D needn’t
Have you ever heard of the trees that are homes animals both on land and sea?
| A．about | B．to |
| C．with | D．over |
Tom had to______ the invitation to the party last weekend because he was too busy.
| A．turn in | B．turn down |
| C．turn over | D．turn to |
Despite the previous rounds of talks, no agreement______ so far by the two sides.
| A．has been reached | B．was reached |
| C．will reach | D．will have reached |