People are encouraged to ________ paper and water for a better environment.
| A．use | B．waste | C．recycle | D．make |
Allan is________ more outgoing than I.
| A．very | B．too | C．much | D．quite |
That T-shirt is not as_________ as this one.
| A．cheap | B．cheaper | C．cheapest | D．the cheapest |
My parents _________ at home on weekends.
| A．are all | B．are both | C．all are | D．both are |
My best friend always makes me__________.
| A．to laugh | B．laughing | C．laughed | D．laugh |
Although he is very old, _________ he works very hard.
| A．and | B．but | C．/ | D．so |