There are ______ of the Grade 8 students in Beijing have classes at the weekend.

(单选题)—I hardly ever heard him sing.—______. He has a good voice. (单选题)President Xi Jinping urged that every effort ______ to rescu (单选题)When you are online, don’t ______ personal information to so (单选题)The earthquake has destroyed most houses in the village. How (单选题)Tell me about it—don’t ______ anything ______! (单选题)Look at the sign over there. No smoking. You should ______ y (单选题)—Tony is talking with our English teacher over there, isn’t (单选题)—Could you please help me carry the box?—______. (单选题)The students are studying hard, for they know ______. (单选题)______ of the money ______ spent recycling the rubbish.