He is ______ in a chair.A. sitting B. sit C. siting
We went Beijing________Jan.1st. A.inB.On
I went_______on my holiday. A.skingB.skiing
There is a foot ball match_____Class One and Class Two. A.between B.at
Some people feel sick________winter. A.inB.at
What______Zoom do last weekend? A.doesB.did