C.put up D.put off
A [儿子从钱夹中拿出(took out)10美元的那张。]
11.A.around B.along
C.away D.across
A [看周围(around)没有人时,作者把车开过去。]
12.A.sent B.handed
C.lent D.showed
B [儿子把钱交到老人手中,故用handed。]
13.A.disappointed B.angry
C.shocked D.crazy
C [由下文可知,老人感到非常吃惊(shocked)。]
14.A.tore B.hid
C.lost D.opened
D [老人打开(opened)钱,看了又看。]
15.A.doubting B.wondering
C.realizing D.informing
C [老人终于明白了(realizing)那不是一美元。]
16.A.grew B.came
C.raised D.changed
A [他睁大了眼睛。grow意为"(慢慢地)变得"。]
17.A.knew B.watched
C.expected D.imagined
B [由语境可判断,作者开车要离开时,儿子从后视镜中观察(watch)那位老人。]
18.A.threw off B.put down
C.made out D.picked up
D [儿子看到那位老人拿起(picked up)背包,离开了。]