Paul isn’t as _____ as Sandy. He often makes mistakes In his homework.
| A．careless | B．more careful | C．more careless | D．careful |
She got __________ gifts for her birthday yesterday.
| A．a lot | B．a lots of | C．lot of | D．lots of |
What did you buy during your last vacation? I __________ a hat.
| A．buy | B．buyed | C．bought | D．was buy |
--- ___________ there any sharks in the aquarium? --- No, we didn’t see any.
| A．Did | B．Had | C．Have | D．Were |
It’s not good for people __________ waste water (污水) into the river.
| A．to put | B．putting | C．to pour | D．pouring |
Every student in Miss Chen’s takes turns __________ the classroom every day.
| A．clean | B．cleans | C．cleaning | D．for |