Question

— Food problem is becoming a big one in China!
—I think the food ________ before going to shops or supermarkets.

A．is checked

B．is checking

C．should be checked

D．should check

Answer 1

C

試題分析：句意：——在中食品問題正在成為一個(gè)大問題！——我認(rèn)為視頻在進(jìn)入商店或超市之前應(yīng)該進(jìn)行檢查。結(jié)合句意，此處是表示建議，因此用情態(tài)動詞should,主語the food 與動詞 check之間是被動關(guān)系，故選C。