完型填空，根据短文内容，从A、B、C、D四个选项中选出一个能填入相应空格内的最佳答案。

Dear Jenny,

　　How's it going? Are you busy with your study these days?

　　I’ve been back at school 　　1　　 nearly four weeks．I'm very glad to tell you that great 　　2　　 have taken place in our school this term．First of all, we’re asked to “clear our plates” when having our meals and say 　　3　　 to wasting．Some of us used to order more than what we could eat．That was a big waste of food．Now we need to 　　4　　 the food we order．We should also stop wasting in some other ways．For example, we should turn off the lights when we 　　5　　 the classroom．And our school has opened up some fields for us to learn how to grow vegetables．Each class is given a small garden and our class has decided to grow some tomatoes and beans(豆类)in our 　　6　　 time．I think that'll be very interesting．Maybe I'll be able to 　　7　　 you some beans we’ve grown by ourselves next time! What's more, we have only two classes in the afternoon 　　8　　 we have more time for after-school activities．I'm one of the traffic safety volunteers in our school．After school, we take turns to go to the streets near our school and ask people to 　　9　　 the traffic rules．

　　I think we are having a different school life now!

　　Please write back soon and tell 　　10　　 more about your school．

Yours,

Wang Wei

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