Điền từ thích hợp vào chỗ trống :

1. ________ you swim when you were ten ?

A. Can B. Could C. Will D. Might

2. We should use ________ pens and pencils to reduce rubbish.

A. Reliable B. Reusable C. Refillable D. Sociable

3. We should use ________ to save natural resources.

A. Oil B. Solar anergy C. Coal D. gas

4. __________ means creating new products from used materials.

A. Reduce B. Reuse C. Recycle D. Rebuild

Điền từ còn thiếu :

1. Ha Long Bay is famous ________ its spectacular islands and caves.

Điền từ thích hợp vaó chỗ trống :

1. What type of music do you often listen _____ when you are free ?

2. My father often picks me _____ at the school gate.

3. Students in grade 6 are very excited _______ their first day at school.