At the top of the tower you can see ______.
A. the sea
B. why it leans
C. a stone
查看答案
【B2】
A. either
B. neither
C. too
Computers work ______.
A. by program
B. by itself
C. alone
The word "lean" means ______.
A. stand straight
B. stand at an angle
C. lie down
【B5】
A. nothing
B. all.
C. OK