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B: have I C: I did D: did I
16(4·?) : Teachers, _____ work is rather hard, are being better paid than before. A: who B: that C: which D: whose
17(4·?) : You object ___________, don?ˉt you? A: that they come B: that they came C: to their come D: to their coming
18(4·?) : _______ in the dark, his head hit against the wall. A: Walking
B: His walking C: When he was walking
D: While walking
19(4·?) : Susan is the very girl _____ the good deed. A: whom I think did
B: whom I think she did C: who I think did D: I think who did
20(4·?) : ________ her and then try to copy what she does. A: Mind B: See
C: Stare at D: Watch
21(4·?) : You should have been more patient ______ that customer￡?I?ˉm sure that selling him the watch was a possibility. A: of B: with C: for D: at
22(4·?) : _______ you are leaving tomorrow, we can eat dinner together tonight. A: For B: Since C: Before D: While 23(4·?) : Don?ˉt you feel surprised to see George at the meeting?Yes. I really didn?ˉt think he ______ here. A: has been B: had been
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C: would be
D: would have been
24(4·?) : The last half of the nineteenth century _______ the steady improvement in the means of travel. A: has witnessed B: was witnessed C: witnessed D: is witnessed
25(4·?) : It seems oil _______ from this pipe for some time. We?ˉll have to take the machine apart to put it right. A: had leaked B: is leaking C: leaked
D: has been leaking