You ______ cross the road when the traffic lights are red. It’s dangerous. 学科网 A. n

You ______ cross the road when the traffic lights are red. It’s dangerous.

A． needn’t B. may not C. mustn’t

[问答题]You should look around before you cross the street.

[主观题]When you find you make a mistake in the chat room, what should you do?_____________________________________________________________________________

[单选题]When you think of the Internet, you probably think of ".com." Just what do those three letters at the end of a World Wide Web address mean? Every computer that hosts data on the Internet has a(71)numerical address. For example, the numerical addres

[主观题]When you are finished with the electric iron, don’t forget_____(关掉它). (turn)

[单选题]B．e careful when you ________ the derrickA．operatingB．operatesC．operateD．operated

[主观题]When were you born?

[单选题]6． Can you tell me when you will _________ school?A． get backB． get back toC． return backD． return

[单选题]When you______know Bob better，you will like him.A．go toB．got toC．went toD．get to

[单选题]24． When you do scuba diving， you can ________．A． stay in deep water for a long timeB． dive very， very deepC．live in deep water easilyD． dive freely without any dangers

[单选题]Stress is the feeling you get when you're really worried about something． This is the kind of worry that troubles you for hours，or even days．It makes you feel (11)，scared(恐惧的)，or angry． You may find it difficult to eat and sleep，or you might eat and