You’d better make a mark ______ you have any questions.
| A．at which | B．at where | C．the place | D．where |
--do you improve your English ?
--I improve itpracticing it more often.
| A．How; with | B．What; with | C．How; by | D．What; by |
We had fun __________ in the lake last Sunday.
A. boat B. boating C. boated
Stop _______ on the ice. It’s too dangerous.
A. skatedB. skating C. to skate
---Have you heard of Liu Qian from Taiwan?
---Sure! His magic performance is ________ surprising for people _______ forget.
A. so; that B. such; that C. too; to
Jim spent all his free time ________ soccer.
A. play B. to play C. playing