Chia từ thích hợp

Smoking during pregnancy can (DANGER)………………the baby’s health.

2. (FOREST)……………….and overpopulation are the two big problems in the developing countries.

3. Many small town in our country have been (URBAN)……………..in the past few years.

4. Scientists have many theories about how the universe first came into (EXIST)…………

5. Nearly all the (DISCOVER)………………that have been made through the ages can be found in books.