There are so many foggy days these days. We all wonder .A. how is the air polluted B. why the air is polluted seriouslyC. what are the real reasons
It will ______ us several years to learn a foreign language well.
I heard that two new ______ would come to our school two days later.
--Can you tell me ______? --Sorry, I don’ know. If he _____, I’ll call you.
--What was your sister like? --She ______ be quiet, but now she is more outgoing than me.
--Would you like noodles or dumplings? --____. I’d like some rice.