John had been working hard and ______.
A.so had his brother
B.so his brother had
C.so was his brother
D.so his brother did
第2题
A.wa=wb=2wc
B.wa>wb=wc
C.wa>wb>wc
D.wa≠wb=2wc
第5题
A.wa=wb=2wc
B.wa>wb=wc
C.wa>wb>wc
D.wa≠wb=2wc
第7题
A.WT>WA
B.WT <wa>
C.WT =WA
D.WT和WA无确定关系
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