I, Loại 1 : 

1.She will be ill is she eats so much.

2. I will go to the party if i have time.

3. I'm sure Mary will do well if she enters college

4. He will be happy if he studies overseas

5. We will be unhappy if Mia doesn't come

6. If the children wants to play, they will stay up late

Loại 2:

1. If she was older, she would have more sense

2. If the dog didn't wake us up, we would never hear the burglar

3. We would enjoy the play better if Anna were the mai character

4. They would do it if they could

5. My sister would stay home if it rained

II, 1. B (câu điều kiện loại 1)

2. (C câu điều kiện loại 2)

3. (B câu điều kiện loại 1)

* Cấu trúc câu ĐK loại 1:

If + S + HTĐ, S + will/can (not) + V0

* Cấu trúc câu ĐK loại 2:

If + S + QKĐ ( đối với động từ tobe thì ta chỉ dùng were/ weren't ), S + would/could (not) + V0

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Ex 1:

${1.}$ eats

${2.}$ go

${3.}$ will do/ enters

${4.}$ will be/ studies

${5.}$ doesn't come

${6.}$ want/ will stay

Ex 2:

${1.}$ were/ would have

${2.}$ could never hear

${3.}$ would enjoy

${4.}$ were

${5.}$ could

${6.}$ could stay/ rained