III. EXERCISE
* Write the correct form of the verbs in the parentheses.
1. I can (do) everything, but Nam can (do) nothing.
2. She must (do) her homework now.
3. Next week we may (have) an English test.
4. Last week she (have to stay) at home.

`color{aqua}{\text{_Lunarzy}}`

`1` do `-` do .

`-` S + can + V-inf + O : Ai đó có thể làm gì .

`2` do .

`-` S + must + V-inf + O : Ai đó phải làm gì `(` mệnh lệnh `)` .

`3` have .

`-` S + may + V-inf + O : Ai đó có lẽ làm gì .

`4` had to stay .

`-` last week : DHNB thì quá khứ đơn .

`->` Form : S + V(quá khứ) + O .

`-` S + have/has + to V : Ai đó phải làm gì .

1/I can do everything, but Nam can do nothing

S+can+Vbare-inf+....

2/She must do her homework now

S+must+Vbare-inf+...

3/Next week we may have an english test

4/Last week she had to stay at home

S+V-ed+...