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 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 energy C. Coal D. gas
4. __________ means creating new products from used materials.
A. Reduce B. Reuse C. Recycle D. Rebuild
