1. If he watches too much television, he will hurt his eyes.

2. If it won't be sunny tomorrow, we can't go to the beach.

3. Teachers and classmates come and support us from the beginner to the end of the match.

4.  It is the most beautiful landscape I have ever seen.

5. We didn't win the match last week because some good players didn't join.

            CÔNG THỨC: If+S+Vhtđ....., S+will+Vbare(TLĐ)

IV, 

1. This is the first time I have ever been to SaPa.

2. I haven't seen him since 2010.

3. This is the first time I have ever been to Da Lat.

4. The last time I visited my family was in 2005.

5. This is the first time I have ever visited this beautiful place.

    CÔNG THỨC: S+have/has+not/never+V_ed/ocootj3+...+before

                    --> It/This+is the first time+S+have/has+V_ed/cột3

III,

1. If he watches too much television, he will hurt his eyes.

2. If it won't be sunny tomorrow, we can't go to the beach.

3. Teachers and classmates come and support us from the beginner to the end of the match.

4.  It is the most beautiful landscape I have ever seen.

5. We didn't win the match last week because some good players didn't join.

IV, 

1. This is the first time I have ever been to SaPa.

2. I haven't seen him since 2010.

3. This is the first time I have ever been to Da Lat.

4. The last time I visited my family was in 2005.

5. This is the first time I have ever visited this beautiful place.

Chúc bạn học tốt!!!

P/s: Mình xin ctlhn cho nhóm ạ!