英语填空!不是坑!明天上课!先到先得分!会答哪个答哪个

题目

英语填空!不是坑!明天上课!先到先得分!会答哪个答哪个
用must not或need not填空 1.You ____open the door of the compartment until the train has stopped.It is very dangerous.2.You ____bother to post those letters for me.I'll be going out myself soon.用have to或should填空 1.I'm sorry I couldn't get here on time.I ____(go) to the bank.2.I _____(go) to the dentist yesterday but I forgot all about it.3.We ____(begin) work at 9 o'clock but we never do.用正确的动词填空 1.If he had fitted safety belts to his car,he ____(not injure) 2.The man would have been saved if a helicopter ____(be) available.3.If you come home late,you _____(find) the key under the mat.4.I would have find the house easily if he ____(give) me the correct address.5.If somking ____(forbid),illnesses will be reduced.

答案

1.musn't（禁止） 2.needn't（不必） 1.have to go 2.should have gone 3.should begin 1.wouldn't have been injured 2.had been 3.will find 4.had given 5.was forbidden