Can I speak _____Yao Ming, please?
A.toB.withC.at
The tree _________ are green in spring.
A.leafsB.leavesC.leaf
They _______ the insects carefully.
A.watching B.are watchingC.is watching
---When do you watch TV?
---I usually watch TV ______ seven o’clock.
A.inB.onC.at
I am ________ a picture.
A.drawB.drawingC.draws