LỜI GIẢI

1. If you don't stop talking, you won't understand the lesson.

→ Câu điều kiện loại 1: If + S + V, S + will/may/can... + V

2. A new road will be opened from Bac Giang to Lang Son.

→ Câu bị động thì tương lai đơn: will + be + V3/ed

3. Mrs. Hoa whom I cooked a meal for yesterday is a vegetarian

→ Mệnh đề quan hệ whom có hình thức đứng đứng đằng sau nó là một mệnh đề hoàn chỉnh.

4. Despite the bad weather, they had a picnic to the countryside as planned.

→ Despite/In spite of + N/V_ing

1 If you don't stop talking, you won't understand the lesson.

`-` Form : if +S +V(HTĐ), S+will/can/may +(not)+V0........

2 A new road from Bac Giang to Lang Son will be opened.

`-` Form : S+will+be+V3/ed+(by+O).......

3 Mrs.Hoa who I cooked a meal for yesterday is a vegetarian.

`-` dùng đại từ quan hệ who thay cho từ her.

4 Despite the bad weather, they had a picnic to the countryside as planned.

`-` although/even though/ though +clause=in spite of /despite +Noun : mặc dù