The student on duty are supposed to _________ the chalk _________ the blackboard before class.
A.clean…off B.clean...up C.clean…out D.clean…away
You shouldn't point ________ others with chopsticks while eating ________ the table.
A.at; at B.at; on C.on; on D.on; at
You look nice on the dress. It is worth ________．
A.buys B.bought C.to buy D.buying
China promises to _______ Paris Agreement on climate change.
A.stick into B.stick onto
C.stick to D.stick in
— It’s rude to ______ your chopsticks _____ your food while having dinner.
—I’m sorry. I won’t do that again.
A.stuck; into B.sticking; onto
C.stick; into D.stick; for
We can’t start having dinner _______ there are old people. We must let them sit down and eat first.
A.and B.or
C.if D.but
