—Hurry up. The bus is coming. —Oh, no, we mustn"t cross the street t

题型：同步题难度：来源：

—Hurry up. The bus is coming.
—Oh, no, we mustn"t cross the street the traffic lights are green.

[ ]

A. after
B. while
C. since
D. until

答案

举一反三

—Would you mind my sitting here with you?
—No, you aren"t too noisy.

[ ]

A. when
B. if
C. unless
D. as soon as

题型：湖北省月考题难度：| 查看答案

Don"t get off the bus ______ it has stopped.

[ ]

A. for
B. as
C. until
D. because

题型：广西自治区期末题难度：| 查看答案

The earth will become worse and worse ______ we do something to stop her from being polluted. [ ]
A. if
B. even if
C. when
D. unless

题型：期末题难度：| 查看答案

We don"t know ______ he will come or not. [ ]
A、if
B、whether
C、unless
D、when

题型：广东省期中题难度：| 查看答案

— Did you return Fred"s call?
— I didn"t need to, ______ I"ll see him tomorrow. [ ]
A. though
B. when
C. unless
D. because

题型：安徽省期中题难度：| 查看答案