Nobody knows ______ or not he will come to the meeting on time . [ ]A. if

题型：江苏省模拟题难度：来源：

Nobody knows ______ or not he will come to the meeting on time . [     ]
A. if
B. even if
C. that whether
D. whether

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举一反三

You"ll fail your next exam _______ you start to work hard at your lessons now．[     ]
A．because
B．if
C．so
D．unless

题型：山东省期中题难度：| 查看答案

I didn"t watch TV________I finished my home-work. [ ]
A．after
B．when
C．while
D．until

题型：同步题难度：| 查看答案

Companies give their products to film stars        fans will buy them.[     ]
A. because
B. because of
C. so that
D. in order to

题型：月考题难度：| 查看答案

_________ you have tried it on, you can"t imagine how pretty the new style skirt is.[     ]
A. Because
B. Although
C. Unless
D. When

题型：同步题难度：| 查看答案

Bob spends a lot of money on books __________he is not rich!    [     ]
A．if
B．though
C．when
D．because

题型：同步题难度：| 查看答案