Remember: don"t touch anything in the laboratory unless the teacher tells you___

题型：同步题难度：来源：

Remember: don"t touch anything in the laboratory unless the teacher tells you________.

A. to touch
B. touch
C. to
D. to be touched

答案

举一反三

Jack didn"t pass the driving test, but he still ________.[     ]
A. hopes to
B. hopes so
C. hopes that
D. hoped

题型：同步题难度：| 查看答案

Some of you may have finished Unit One. ________， you can go on to Unit Two.[     ]
A．If you may
B．If you do
C．If not
D．If so

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If the food tastes nice, I"ll go to buy some more; ________, I won"t go.[     ]
A. if not
B. when not
C. if any
D. whenever

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Though he started late,  Mr Guo played the piano as well as, if        , Miss Liu.     [     ]
A. not better than
B. not better
C. no better than
D. no better

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Some of you may have finished Unit One. _____, you can go on to Unit Two. [ ]
A. If you may
B. If you do
C. If not
D. If so

题型：山西省模拟题难度：| 查看答案