－Could you please help me check what’s wrong?
－Sorry, I don’t have much _______of the computer.
| A．introduction | B．development | C．knowledge | D．information |
She often ___________ her parents do housework at home.
| A．asks | B．makes | C．helps | D．lets |
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 |