关键语法
用所给词的适当形式填空
（1）Mary is only four years old，but she can________（read）．
（2）________（arrive not）late for the meeting．
（3）Does Tom have to________（finish）his homework by five？
（4）There are a lot of________（rule）in our school．
（5）It’s very________（importance）for us to come to school on time．