求七年级下的英语重点语法

七年级下的英语重点语法是一般过去式，常常和表示过去的时间状语连用，如：just now, xx year ago……
His grangpa _____(死） five years ago.
He _____(become) interested in science when he was seven years old.
还有感叹句：
What a ____(遗憾)!
还有can,cannot:
Neal is a clever boy.He ____ make a model plane.
还有must,must
Must I ……？Yes, you must./No, you needn't.

不会

Please wash your hands befor ____(have)dinner

1.help sb (not) do sth
2.Thanks for doing
3