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，并在答题卡上将该选项涂黑。
26. We _________last night, but we went to the concert instead.
A. must have studied B. might study C. should have studied D. would study
27. I have finished typing the three letters you handed in this morning. Do you have anything else _____?
A. to type B. typing C. being typed D. to be typed
28. _______ you’ve got a chance, you might as well have a try.
A. Now that B. After C. Although D. As soon as
