第一节: 单项填空(共13小题；每小题2分，满分26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。
21. Their balanced diets became such ________ success that before long Wang Peng become slimmer.
A. an B. / C. the D. a
22. I am __________seeing you again.
A. looking forward B. looking forward to C. looking after D.looking at
23. The earth became so violent that it was no clear ________ that shape would last or not.
A. which B. that C. whether D. if
24. Something terrible ________.
A. must have happening B. must have happened C. should have happened D. will happen
25. The country, covered with cherry tree flowers, looks________ it is covered with pink snow.
A. even if B. like C. as though D. even though
26. ________ me ________ lead the way, Sir
