—This article is too hard to understand.—Yes, _______ it's very short and there are few new words in it.
Who is _____ swimming, you or she?
.He tries ____ English and he practices _____ English every day.
.—What ________ the twins _________ on weekends? —She usually goes skateboarding.
The weather here is__________ that in Beijing.
It’s good__________your health_________.