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
It will be ___ wonderful world if all nations live in ___ peace with each other.
| A．a；a | B．the；the | C．a；the | D．a ；/ |
_________ more customers, many companies prefer to spend a lot of money in advertising.
| A．Attract | B．Attracting | C．Attracted | D．To attract |
_______, women have changed history in terms of the contributions they have made.
| A．To some extent | B．In conclusion | C．In addition | D．As a whole |
All the preparations for the task _______, and we’re ready to start.
| A．complete | B．have completed |
| C．had been completed | D．have been completed |
—You shouldn’t have shouted at your mother. It really hurt her.
—Exactly. I ________ crazy at the time.
| A．must be | B．could be | C．must have been | D．could have been |