As a teacher . I often make it a rule that when we are on a field trip , there will be no talking as we enter a building . This rule 1 to entering any place , whether it is a cinema , a church , a theatre, or any other place . Once , in New York City , I took my class to see a(n) 2 near Times Square . When we arrived at the theatre , there were about twenty other classes 3 outside waiting to get in . The students from the other schools were not 4 and there was pandemonium( 乌烟瘴气 ) . I told my students to stay in a line and keep 5 . I told them that we would not carry ourselves like those other 6 . Soon we started to file into the theatre , and it was very disorganized . There was a 7 the groups and get them to their seats , 8 students were everywhere and 9 really knew where to go . My class , observing our rule , walked in 10 in two single-file lines . We stood near the door behind everyone else , and we 11 . All of a sudden , the lady who was 12 noticed us and she walked 13 our direction . She asked the students 14 the teacher was for our group, and I raised my 15 . She asked,“Very, very nice to meet you . Come this way . ”We were led into the theatre , 16 , and we were given front-row seats . Sometimes 17 for others may not seem like it is going to have an effect , especially when you 18 no one around who is taking manners into 19 . However , that is usually the time when such 20 actions will be most appreciated and recognized . 1 A . leads B . applies C . turns D . belongs 2 A . play B . lady C . teacher D . exhibition 3 A . sorted out B . settled down C . turned away D . lined up 4 A . behaving B . listening C . concentrating D . watching 5 A . order B . contact C . watch D . time 6 A . places B . seats C . classes D . teachers 7 A . scold B . dismiss C . attract D . organize 8 A . and B . but C . so D . while 9 A . anyone B . nobody C . everyone D . somebody 10 A . anxiously B . immediately C . quietly D . hurriedly 11 A . passed B . chatted C . rushed D . waited 12 A . in trouble B . on guard C . in charge D . on business 13 A . in B . to C . for D . under 14 A . how B . where C . what D . whether 15 A . voice B . arm C . head D . hand 16 A . finally B . somehow C . first D . instead 17 A . respect B . love C . concern D . support 18 A . receive B . visit C . recognize D . meet 19 A . practice B . effect C . account D . operation 20 A . urgent B . kind C . legal D . F irm