. If it ______ for the fence, he ______ into the river. A. were not; fallen B. had not been; could have fallen C were not; could fall D. had not been; could fall
第二节语法和词汇知识(共15小题;每小题1分,满分15分)
从A、B、C、D四个选项中。选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
All of____ sudden, I caught ____ sight of my lost watch under the sofa.
A.a; \ B.\;a C.the; a D.a; the