Look at the mess the boys made! You _______ have taught them how to behave themselves.
| A．must | B．may | C．can | D．should |
相关试题
David was responsible and hardworking, _____ he was promoted from a clerk to a manager.
| A．which | B．as | C．for what | D．for which |
. The little girl showed no anxiety before the competition. She seemed ________ for it pretty well.
| A．to have prepared | B．to prepare | C．having prepared | D．to be preparing |
Don't take _____ for granted that your parents should support you all your
life .You should learn to be independent.
| A．this | B．it | C．that | D．those |
. --- The company spent thousands of dollars to promote its new product.
--- They _____: the world itself was more than ready to buy.
| A．shouldn’t have bothered | B．needn't have bothered |
| C．couldn’t have bothered | D．mustn’t have bothered |
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