(一) 一般现在时
1.表示经常，习惯，客观存在，真理等概念的句子。时间状语常为：always,often,usually,sometimes,seldom,occasionally,now and then,every time等。
Exercises:
1.When I see Jane in the street, she always ___ at me.
A smiled B has smiled C was smiling D smiles
2.Who___ to school earliest in your class every morning?
A come B comes C is coming D are coming
