Look out! The traffic is moving fast. It’s________ dangerous ________ cross the street.

In his victory speech ________ before a huge crowd of his supporters, Obama declared that “change has come to America” [ ]

下列加点字意义和用法相同的一组是

You’d better read the __________ first before you start to use the machine.

Could I have a word with you,mum?-Oh dear,if you ________.[ ]