Please______that the quality must strictly conform to the sample.( ) A: see it B: see to it C: see D: see at

Please _____ that the quality must strictly conform to the sample. A: see to it B: see it C: see at

If only grandmother ____ this together with us now. A: will see B: should see C: must see D: could see

You ________ him off yesterday. A: must have seen B: must see C: can have seen D: can see

Such films _____ by children like you. A: must be not seen B: must not be see C: must not seen D: must not be seen

我们得不断分析环境变化，看是否有必要改变原来的计划。 A: We must constantly analyze changes in the environment to see if there was a need to change the original program. B: We must constantly analyze changes in the environment to see if there is a need to change the original program. C: We must constantly analyze changes in the environment to see Whether there was a need to change the original program. D: We must constantly analyze changes in the environment to see that if there is a need to change the original program.

Astronauts must take a series of tests to see whether they are capable of living in space.

It's ____ that the Great Wall is a must-to-see. A: told B: spoken C: talked D: said

— I think I saw John yesterday. A: You _____ him, for he is now in the U.S. B: can't see C: can't have seen D: may not see E: must not see

We must ______ the feelings of other people. A: prevent B: consider C: think D: see