1.( ) have I seen a better performance.
A.Everywhere B.Everywhere else
C.Nowhere D.Nowhere else
答案选C，为什么不选D
2.If she could sew, _____.
A. she make a dress 　　 　　B. she would have made a shirt
C. she will make a shirt　　　 D. she would had made a coat
答案选B，问题是：对过去虚拟，if从句应该用过去完成时？
3.( )that evening was due to his ill health.
A.He failed to come B.That he failed to coming
C.His failure to come D.His failure in coming
答案选C，为什么不选D
4。Will you lend him a magazine ( )
A.to be read B.for reading C.to read D.read
答案选C，为什么不选B
5。After he watered the grass, he put up a notice by its side,( )was written “Keep off”
A.on which B.which C.by whom D.that
答案选A，问题是：定语从句缺少主语而不是状语

1, 句子中的后半句，有一个表示比较的better，已经说明是异地之间的关系了，所以就不必再加else 了。
2，在虚拟句中，有时候条件句和主句的时态是不统一的，条件可以是过去，而主句是现在；也可以是条件指现在，而主句为过去。这通常被称之为错中复杂句。例如：If had known about it yesterday, I would not come here today. If I didn't come here today, I would have finished it yesterday.
3, 这与fail和不定式的连用，有一定的关系。fail与不定式连用，表示“没能、不愿”的意思。而fail in coming则表示“在某方面的失败、不成功”。
4，不定式作定语，表示“要读的”，而介词for则表示“用途”，那么 for reading就是“用于阅读”的杂志的意思了，难道还有“不用于阅读”的杂志吗？可见其与句子不符。
5，这个定语从句，不缺少主语，这是个倒装句。真正的句子结构应该是on which “Keep off”was written 。