第一节 单项填空（共20小题；每小题1分，满分20分）
从每题所给的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。
1. We need to work faster because time is _____.
A. of the essence B. of the importance
C. limitless D. countless
2. Reading Chicken Soup for the Soul may be _____, but it is very rewarding, especially for your cloze test.
A. time-spending B. time-consuming
C. enjoyable D. remarkable
