一、 单项选择:从各小题所给的 A、B、C、D 四个选项中,选出一个最佳答案
(共20 小题;每小题 1 分,满分 20 分
)1.You can’t pass the exam _________ you study hard
A.if B.because C.unless D.so2.Look out
Don’t get too close to the house roof is under repair
A.whose B.which C.of which D.that3.If it were not for the fact that she _________ sing, l would invite her to the party
A.couldn’t B.shouldn’t C.can’t D.might not4.Always read the _________ on the bottle carefully and take the right amount ofmedicine
A.explanations B.instructionsC.descriptions D.introductions5.Green products are becoming more and more popular because they areenvironmentally
A.common B.various C.friendly D.changeable6.—What happened to you this morning
—The teacher asked me for my _____ when I was late again
A.meaning B.idea C.excuse D.answer7.—Would you help me put a