1. Peter has recycled rubbish since July. (HTHT+since)

2. It has been ten years since Tom donated books and clothes.

(S+have/has+(not)+V3...since (for)

3. Because Hoang was lazy, he failed the exam.

(S+V+O+because of sth/sb

->Because+S+V, S+V+O

V ở đây chia theo ngữ cảnh)

4. We should eat a lot of fruit and vegetables every day.

(It's a good idea to do sth

->S+should do sth)

5. He forgot everything about it.

(Câu phủ định dùng "anything", khẳng định dùng "everything)

6. I think collecting class bottles is interesting.

(S+find+doing sth+adj

->S+think+doing sth+be+adj)

1. recycled rubbish in July.

2. been 10 years since Tom last donated books and clothes.

3. was lazy, he failed the exam.

4. eat a lot of fruit and vegetables every day. (should + V nguyên :nên làm j)

5. everything about it

6. collecting glass bottles is interesting.

   Note: S + started + Ving + in+ mốc thời gian

           = S + have/has + Ved/Vpii

             not remeber anything = forget everything :quên hết mọi thứ

            Find doing sth interesting = Think doing sth is interesting

              Because + S+V, S+V......:bởi vì

            = Because of + N/Ving