成人本科學(xué)位英語(yǔ)單項(xiàng)選擇題每日一練(2020.09.06)

來(lái)源：考試資料網(wǎng)

1 Technology is to the development of the modern society a matter of（）importance.

2 The boy ran out of the classroom without the teacher's（）

3 I'd like to take（）of this opportunity to thank all of you for your efforts.

4 The ratio of the work done by the machine（）the work done on it is called the efficiency of the machine.

5 It is not surprising if in these conditions people behave aggressively towards each other；it is impossible for them to behave（）