第一节 单项填空(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。
例:
It is generally considered unwise to give a child ___________ he or
she wants.
A.however B.whatever
C.whichever D.whenever
答案是B。
21.Don' t be afraid of asking for help
____________ it is needed.
A.unless B.since C.although D.when