You ______ litter in the school. Let’s keep it clean.A. should B. shouldn’t C. can
Hi, John. ___________ write on the wall. __________ the wall clean.
______________ eat too much candy. It’s bad ___________ your teeth.
情景搭配.
Hello. _____ Nina. Can I speak your mom, please?A. That is ;on B. I am ;for C. This is ;to
That elephant is drinking water _______ its trunk.A. in B. at C. with