They usually spend two hours _______ their homework every day.A. do B doing C to do
They went fishing ______ a sunny morning.
Don’t worry. There’s _________ time left.
We’re tired because we have ________ yin.
--- How is he getting on with his spoken English?--- Great. Now he can speak English ______ his English teacher.
—________ do you surf the Internet?—Twice a week.