1、The child slipped and fell,_______________________(头碰到了门上)
2、All flights ______ because of the snowstorm , many passengers could do nothing but take the train.
A、were cancled B having been cancled
C had been cancled D have been cancled
3 The boy's body was covered with a national flag ,________________
A left his face exposed B to have his face exposing
C leaving his face exposing D leaving his face exposed
1 his head hitting on the door
2 B
3 C
his head knocking on the door.
B
D
1.his head came up against the door.
2.D but take the train说明是一般现在时态，故用选D，现在完成时，且是被动时态。
3.D exposed是形容脸的而exposing 是形容物的
1. his head hitting on the door
2. 选B。这是一个简单句，句首只能用独立主格结构作状语，航班与取消是被动关系。
3. 选D。分词短语作状语，表示伴随状态，face与expose之间是被动关系。
1、with his head touching the door
2、B
3、D
1 with the head knocked on the door.
2 C 取消航班在前，旅客坐火车在后，所以用过去的过去
3 A 脸被露出来，所以用exposed；主语是男孩的body，body不能expose脸，只有flag能，所以不用leaving