There _____ be a shortage of water in Yunnan? I wonder. You know it is in the southwest of China where there used to be adequate rain . A could B must C can D should
— I have just had my watch repaired. —How much did they ______ you?
— Can I help you, madam? — Yes, I bought this air conditioner here yesterday, but it _____ now.
She knows that as a secretary she must be pleasant and helpful no matter how busy she is or what kind of ____ she may be in.
— ____ sweep the classroom yesterday? —I was playing tennis with my friend.
He didn’t _____ to the news.