There _____a book and two pencils on the desk.
--Whatare those sweaters? --They are yellow. A. color B.size C.shape
--- When did your father come back last night? --- He didn’t come back _______ he finished all the work.
I think Kate will come if she _______ free this afternoon.
---I hope you _______ my party next weekend? --- OK, I _______ .
I was doing my homework _______ mother was cooking.