—Why are there so many people learning English all over the world?—They speak English as second language.A. a B. an C. the
Mary _________ as a volunteer teacher for 10 years.
— Is Mike at home? — No. He ________ with his friends now.
I will tell you the good news as soon as you _______ back.
My grandma ______ dinner when I got home yesterday.
David enjoys _________ basketball on the playground after school every day.