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I’d prefer ______ in the office rather than _____ at home watching TV.

A. working; staying    B. working; stay      C. to work; stay       D. work; to stay

You can’t be ______ when you camp _____ an high altitude, where the air is thin.

A. enough careful; at B. too careful; at C. careful enough; on  D. too careful; on

The athlete fell off his bike when he _____ down the hill.

A. cycled         B. was cycling       C. had cycled          D. is cycling

 Ever since my brother graduated from the university, he _______ in the present company for 15 years and he is now chief engineer of the company  .

A. worked       B. has been working        C. is working         D. works

We have to ______ a time to discuss the matter again.

A. make        B. schedule           C. have             D. create

Even though she has many ______, I _______ any less.

  A. faults; don’t fond of her                    B. shortcomings; don’t love her

C. errors; don’t like her                      D. mistakes, am not fond of her

 It might be very difficult to find the ____ of the information.

  A. cause            B. resource           C. source             D. course

You have to keep on learning if you want to keep ______ with the development of modern science and technology.

   A. peace            B. touch             C. pace              D. connect

Is it true that light travels in a straight line and never ______ it hits something that reflects it.

A. turns; until        B. bends; unless       C. breaks; when     D. changes; until

We would rather die than ______ difficulty.

A. give up to         B. give in to          C. give way to        D. give back to