Điền từ thích hợp vào chỗ trống:
If you _______ this dress, you will look more fashionable.
-If you can't join my birthday party, I _______ very upset.
-They _______ if they don't get help soon.
-We _______ thousands of trees if we don’t waste so much paper.
-You _______ in Hanoi by 5 p.m if you leave now.
-He _______ see well if he switches on the lamp.
- She ______ a pair of glasses if she wants to read books.
- If you don’t feed the dogs daily, they ____ of hunger.
- Students _______ the lesson if they _______ attention in class.