—Forests are very important, aren’t they?—Yes. They can prevent the water washing the earth away.A.for B.to C.from
—_____schoolbag is that? —You mean the one behind the chair? It’s Tonny’s.
Mary spends a lot of money on clothes _____ her family is not rich.
—_____ will you play basketball with me? —In about 20 minutes after finishing my homework.
Daniel is good at computer. He taught _____ to make a home page.
I _____ walk to school. But this morning I took a bus because I got up late.