第一节单项选择(共15小题;每小题1分,满分15分)请认真阅读下面各题,从题中所给的A、B、C、D、四个选项中,选出最佳选项,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
More and more people choose to shop in a supermarket as it offers a great _____ of goods.
It was really very dangerous. One more step, ______ the baby would have fallen into the well.
It is usually warm in my hometown in March, but it ________be rather cold sometimes.
No one had told Smith about __________ a lecture the following day.
If the food tastes nice, we will buy some; if ________, ________.