Don"t promise anything ________ you are one hundred percent sure.[ ]A．whethe

题型：陕西省同步题难度：来源：

Don"t promise anything ________ you are one hundred percent sure.[     ]
A．whether
B．after
C．how
D．unless

答案

举一反三

We"ll have a picnic in the park this Sunday ________ it rains or it"s very cold.[     ]
A．since
B．if
C．unless
D．until

题型：陕西省同步题难度：| 查看答案

We don"t keep winning games ________ we keep playing well.[     ]
A．because
B．unless
C．when
D．while

题型：陕西省同步题难度：| 查看答案

You are sure to make great progress________you stick to your plans for your study. [     ]
A. in case
B. as long as
C. even though
D. so that

题型：山东省同步题难度：| 查看答案

Unlike watching TV, reading is a highly active process________it requires attention as well as memory
and imagination. [     ]
A. until
B. but
C. unless
D. for

题型：山东省同步题难度：| 查看答案

________you have decided to go, you’d better leave at once in order to avoid the rush hour.[     ]
A. Now that
B. Unless
C. Although
D. Even if

题型：山东省同步题难度：| 查看答案