We must keep away from some _____, for they will do harm to our health.A.chemistryB.

It’s time we ____some measures to solve this problem.A、must takeB、will takeC、tookD、have

We now ______ him by writing letters.A、keep away fromB、keep onC、keep in touch with

You must ______ the facts and not run away from the truth. A. look B. see C. watch

They keep telling us that it is vital that we ______there on time.A．areB．beC．must beD．woul

We must keep up with the development of the worlds leading enterprises ______we can keep p

Would you mind keeping a(n) __ on the house for us while we are away?A. eye B.