3.Despite high prices of the goods, the shopping mall is always attracting a lot of customers for its________supplies.
A.diverse
B.discount
C.abundant
D.effective
答案:A diverse“多样的,不同的”。句意:尽管购物中心的物品价格很高,但其多样化的供应品总能吸引大量的顾客。discount“折扣”;abundant“充足的”;effective“有效的”。
4.We must do something to________the old house, or it might fall down.
A.strengthen
B.fasten
C.fix
D.repair
答案:A 句意:我们必须做点什么来加固这座旧房子,不然的话它就会倒塌。strengthen表示“加固”。
5.Evidence obtained from observation and experiment is often used to________a scientific theory.
A.confirm
B.conclude
C.consult
D.confuse
答案:A 句意:通过观察和实验获得的证据经常被用来确认一项科学理论。
6.It will not be________he returns from abroad.
A.before long
B.long before
C.after long
D.long after
答案:B It will not be long before...意为“要不了多久就会……”。句意:用不了多久他就会从国外归来。
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