{01}I need only one of these two pens. You may take one and leave ________ . A.another B.the other C.the others D.some 解析: 本题选B。 {02}We found __________ impossible to work out the problem quickly. A.that B.it C.this D.there 解析:it在句中作形式宾语,to work out the problem quickly为真正的宾语,其余单词不作形式宾语。 本题选B。
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