题目内容：

13.I don't want to go inside the waiting hall ---it's too_______
I prefer________outside though it is king od cold.
A.crowded,being B.early,waiting C.late,to wait D.boring,be
19.Be careful when______________the street
A.crossing B.crossed
20.---Excuse me ,could you please shou we how to use this MP4 player?---_________
A.Sure,with pleasure B.Certainly!It's here C.yes,youcan
D.Not at all

优质解答

1.A.这个题感觉B也没什么错误,但是根据意思,一般的大厅人肯定很多,而不是因为他去早了才不在大厅等,况且后面还有个外面冷.如果仅仅因为去的早的话,还讲的通么?
所以选A!
2.A.是个省略句,when you are crossing
3.A.这个很简单,意思是当然,很高兴帮你!