两道英语单选,并解释.1、China and united states held their first strategic dialogue on August 1 and __ to increase cooperation and constructive relations.A.agreed B.would agree C.have agreed D. had agreed 2、It was only when I got home late in the evening that __ what had happened to my brother .A.I knew B.I had known C.did I know D.had I know
问题描述：
两道英语单选,并解释.
1、China and united states held their first strategic dialogue on August 1 and __ to increase cooperation and constructive relations.
A.agreed
B.would agree
C.have agreed
D. had agreed
2、It was only when I got home late in the evening that __ what had happened to my brother .
A.I knew
B.I had known
C.did I know
D.had I know
答
1.A，and表并列，两个动作应时态一致
2.A这是句强调句，可去掉It was 和that，根据语境，应选A
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答
1. A 求证了一下 应该是选A的 因为是并列结构 and 连接held和agreed
2. C 首先 It was only...that...句型要倒装 排除A B “我”是到家的时候才知道发生了什么 而不是回家之前就已经知道 所以选C
答
1.A,and并列
2.C,It was only...that...句型要倒装 排除A B “我”是到家的时候才知道发生了什么 而不是回家之前就已经知道 所以选C