2 . 从方框内选择恰当的单词并用其适当形式填空。每词限用一次。

grow,       improve,     send,       become,       plant

1. Tony ________ a doctor in seven years.
2. Alice ________ an e-mail to her aunt yesterday.
3. Paul is going to be a soccer player when he ________ up.
4. Grandpa ________ a young apple tree in the garden now.
5. Keep practicing, and you ________ your English.

4 . 用所给词的适当形式填空。每词限用一次。

rise   drive   disappear   turn off   improve

1. When it’s 8:30 p.m. on the last Saturday of March every year, lights ________ around the world and it keeps for an hour to remind people to protect the earth.
2. Mr Li said he ________ nearby when Flight MU5735 fell into the mountains in Guangxi last month.
3. —What’s your opinion about this problem?
—Well I think the tigers ________ unless we take action at once.
4. The sea level ________ by 1.31 mm each year from 1900 to 2015.
5. In China, the living standards of hundreds of millions of people ________ during the past 40 years.

6 .

realize, cancel, improve, dig, divide

1. Unless the weather ________, we will have to cancel the picnic.
2. It’s five o’clock in the morning. He with his parents ________ in the garden to plant trees.
3. We ________ our mistakes. Please give us a chance to correct it.
4. This Saturday our class ________ into four groups to do a survey.
5. All flights ________ because of the snowstorm yesterday. Passengers could do nothing but take the train.