1 . Please ________ (sure) that all lights are switched off when you leave the office. (所给词的适当形式填空)

2 . List the pros and cons, __________ you’ll make a better decision. (用适当的词填空)

3 . ___ (make) good use of learning resources such as the website and the library, and you will make great progress. (所给词的适当形式填空)

4 . Not only the activity was greatly praised but also it raised our environmental awareness. What a ________________ (reward) day! (所给词的适当形式填空)

5 . ________fascinating it is to go hiking in the country park in the cool autumn! (用适当的词填空)

6 . ________great fun it was marching along the streets, enjoying the festive atmosphere! (用适当的词填空)

7 . Unluckily, my pet was killed in an accident. You can imagine how________________ (sorrow) I am now! (所给词的适当形式填空)

8 . Most people assume that regular exercise does wonders for the body and mind — but _______ exactly are its benefits? （用适当的词填空）

9 . Stand over there __________ you’ll be able to see the oil painting better. (用适当的词填空)

10 . Never be satisfied with yourself, ______ you will fall behind others. (用适当的词填空)