We should go to school by bus or underground rather than by car       global warming.
#96254
A
reducing
B
to reduce
C
reduced
D
having reduced
推荐题目
When his mother came home, he pretended       sound.
#95833
A
sleeping
B
to sleep
C
to have slept
D
to be sleeping
The missing boys were last seen _______ near the river.
#90108
A
to play
B
to be playing
C
play
D
Playing