They usually spend two hours _______ their homework every day.A. do B doing C to do
Lee can play ________ piano.He can join the music club.
— ________ club do you want to ________? —The sports club.
There were some cases ______ women employees were fired when they were pregnant.
The teacher spoke of some writers and some books ________ we need to know.
Look at ______I bought yesterday.