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10春学期《大学英语(四)》在线作业一
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一、单选题(共 20 道试题,共 100 分。)V
0 {, R' E+ M! [8 s+ I% h 1. 17. We have not seen our next-door neighbors for weeks. They __D____ somewhere for holiday.6 J7 G; y0 v; T$ e; N4 r8 [
A. should have gone
( N5 F. @/ T( U" l0 _% p3 oB. need have gone
# q4 X1 e$ X! kC. ought to have gone
% N3 X0 [5 {% [3 D# ]D. must have gone. h2 s8 T; o$ M7 a- o
满分:5 分 |
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