1 . Complete the sentences with the correct forms of the words in the box.

expand            overcome            estimate          generate          extension

1. The school board plans to have a(n)_____________________ built to the library.
2. The new film______________________ a lot of excitement, and ticket sales were way beyond our expectations.
3. Unable to______________________ his shyness, he stood there without saying anything.
4. Foreign trade______________________ greatly in the past few years.
5. It ______________________that the project will last more than ten years.

2 . 根据语境用所给单词的正确形式填空

combat, disarm, friction, profession, stable, uniform, weapon

1. It’s known to us that ________is important, but how can we keep the society ________?
2. All the ________ were delighted that the long ________had come to an end at last.
3. Working as a teacher is your ________and you should respect your ________.
4. The enemy soldiers have put down their ________and took off their ________.
5. The frequent________ between parents and their teenage children are very common in modern society.
6. The two sides agreed on ________troops and leaving their weapons at military positions.