题目

the door when you take an underground in a hurry.A.Mind B.Watch out C.Take care D.Look out 答案：【答案】A【解析】句意：当你匆忙乘地铁的时候，小心门。A. Mind注意；B. Watch out小心；C. Take care小心；D. Look out小心。Mind为及物动词，watch out，take care和look out均为不及物动词短语，根据空格之后的the door为宾语，故空格处为及物动词，故选A。15．How many students are there in the school now？A．1000         B．900            C．600．