3. A.In no time B.For the first time
C.From time to time D.At all times
4. A.off the mark B.out of date
C.out of fashion D.off the way
5. A.plentifully B.vastly C.perpetually D.dramatically
6. A.waterproof B.foolproof C.bulletproof D.fireproof
7. A.guessing B.reporting C.predicting D.forcasting
8. A.out of hand B.beyond their control
C.at their disposal D.in the air
9. A.but B.that C.however D.whatever
10.A.formulas B.formation C.function D.fragment
11.A.the place of B.control of
C.into consideration D.care of
12.A.extent B.case C.pinch D.degree
13.A.cuts down B.comes in C.goes out D.cuts off
14.A.evaluate B.offer C.add D.place
15.A.correct B.clear C.accurate D.accuracy
16.A.1andmass B.subcontinent C.1and shield D.1and crust
17.A.emits B.evaporates C.penetrates D.enlightens
18.A.points B.bits C.tenths D.spots
19.A.prevalent B.previous C.preliminary D.prenatal
20.A.lets B.gives C.enables D.wants
答案:1-5 BCCAD 6-10 BCCCA 11-15 CDBDC 16-20ABCBC