Điền từ thích hợp vào chỗ trống: We will have to mark _________ these old books if we want to sell them quickly

2. We will have to mark _________ these old books if we want to sell them quickly.

3. You can’t keep your children _________ your thumb all their lives.

4. He had to rub _________ his French to help his son when he started to learn it at school.

5. They spent a week in the capital city and then made _________ the country.

6. This book gives fascinating insights _________wildlife in the jungle.

7. My younger brother is a thorn _________ my flesh. He keeps annoying me.

8. Remember to go _________ your essay checking for grammar and spelling mistakes before you hand it in to me.

9. The police arrived immediately after the call and caught the burglar _________ the spot.