同等學力英語輔導 每日一練（11月12日）

1. ______ you were busy, I wouldn’t have bothered you with my questions.
A. If I realized B. Had I realized
C. Did I have realized that D. As I realized

2. There are many kinds of metals, ______.
A. each having its special properties B. having its special properties
C. one has its special properties D. each has its special properties

3. Both Lily and Lucy ______ to the party yesterday.
　 A. invited B. was invited
C. had invited D. were invited

1. 本題答案是B。
典型的表示與過去事實相反的虛擬語氣句型，條件狀語從句用if+主語+過去分詞，主句用：主語+ would (not)/should（not）+過去分詞，當省略if 時，條件從句中的had 提前。故答案為B。

2. 本題答案是A。
本句考察獨立主格結構。B沒有主語；逗號不能連接兩個獨立完整的句子，因此排除C，D；只能選A。句意為“金屬有很多種，每一種都有它的特性。”故答案為A。

3. 本題答案是D。
由both … and … 連接兩個單數名詞作主語時，謂語動詞用復數形式。故答案為D。