二、选择填空(共25小题;每小题1分,满分25分)
A)单项填空从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
21. --- David promised to come. round to have supper with us today.
--- But he ______. I've been alone for half an hour.
A. hasn't B. didn't C. won't D. doesn't
22. Suzhou is ______ beautiful place that ______many people come to visit it every year.
A. such, so B. so ,so C. such a ,such D. such a ,so