2. Put the verbs in brackets in the correct forms.
(Hoàn thành các câu sau bằng cách sử dụng nguyên mẫu có to hoặc nguyên mẫu của các động từ trong ngoặc.)
1. If tourists buy local products, more of their money (stay) ______ in the community.
2. If we lived in the countryside, we (grow) ______ our own vegetables.
3. If my grandmother (be) ______ still alive, she (be) ______ a hundred today.
4. If people (give) ______ up flying, they (reduce) ______ their carbon footprint.
1. stay
2. grow
3. to be - to be
4. give - reduce