21、With tags（标签） _____ to the luggage, it won’t take long for the passengers to find theirs correctly．．

A．attaching          B．attached        C．to attach         D．attaches

20、You’d better not phone me between two and six o’clock this afternoon; I ___a speech then．

A．will give                                    B．will have been giving

C．will be giving                                   D．will have given

19、Mary _____ be in London because I saw her in town just now．

A．mustn’t        B．isn’t able to         C．needn’t      D．can’t

18、While ____ in tea with that dealer, Mr. Smith had himself ____．

A．trading; ripped off                              B．buying; ripping off

C．selling; ripped off                               D．purchasing; rip off

17、This picture was taken when my father was a child and even I myself couldn’t _____．

A．find him out         B．pick him out         C．put him out          D．take him out

16、He is the lawyer who you took photos ____ you were in the Forbidden City．

A．when         B．of when             C．where          D．of where

15、I could hardly tell the twins apart because their appearances are only ____ different．

A．slightly         B．gradually            C．personally           D．extremely

14、The Roman Empire _____ for several centuries．

A．exists          B．existed        C．was existed        D．is existing

13、_____, Mother will wait for him to have dinner together．

A．However late is he                             B．However he is late

C．However is he late                             D．However late he is

12、Your body language _____ your real emotion．

A．gave in        B．gave up            C．gave away           D．gave out