8.No one can finish all the tasks alone. Don't______ to ask for help. We can all benefit from cooperation.

7. In order not to hurt Mary’s feelings,please don't _________ the incident again.

6. Many people are unaware of just how much food and drink they _______ each day.

5.Although John _______ the girl for a year, he is still in two minds as to whether to marry her or not.

4.In the joint ______ ,the Chinese party will hold a 51 percent controlling interest.

3. Kids may grow faster or slower but most of them still ___________ an average height.

2.A good relationship is built on honesty, trust, and ________ respect.

1. We set out to find the truth behind the __________ of the scientist’s disappearance.

15.It's amazing that the toddler can____ to one hundred and backward.

14.The kids never received any professional training previously, but their performance was____.

13.At that time, most stores in that region allowed
shoppers to goods and services at a mutually agreed price.