Why did the depletion of rain forests result from the world’s growing population.'? a. Peo
A.a and b
B.a and c
C.c and d
D.b and d
A.a and b
B.a and c
C.c and d
D.b and d
第3题
—Why did you say the boy was hopeless? —Hes______clever______hard-working.
A.either; or
B.both; and
C.neither; nor
D.too; to
第6题
"Why did you leave the meeting early?" "I found the discussion______."
A.boring
B.bored
C.bore
D.boredom
第7题
Why did the colonists leave England?
A.because of religious problems
B.to establish a new religion
C.to learn farming
D.because of the Indians
第8题
Why did Ann want to scream? Because ______.
A.the plane didn' t leave the ground
B.she couldn' t make the plane stop
C.she couldn' t hear the wind
D.she couldn' t see the runway
第9题
-Because she had an important meeting to attend that day.
A.tur down
B.put away
C.dress up
D.pick up
第10题
Why did the accident take place? Because ______.
A.the doctor drove badly
B.the car hit a tree
C.of the ice
D.the road was too bad
第11题
Why did farmers reject Newbold's plow? ()
A.Their horses were frightened by it.
B.They preferred lighter tools.
C.It was too expensive.
D.They thought it would ruin the land.