Car prices have been going down sharply in the last 20 years.—It’s not surprising because the law of market _____the price of a product

Do you know Sam didn’t pass the swimming test thistime—_____________ His coach said he was the best one inhis team.

has ________ food and drink channelwith clear explanations, is very popular website

____ we know now, oceans cover more than 70 percent of the earth.

We all __________how hemade such great progress in a short time.