It’s dangerous______a tree．
#58020
A
climbing，
B
going up
C
to climb
D
clim
推荐题目
— We can use QQ to talk with each other online.— Really? Could you please show me _______ it?
#55975
A
what to do
B
how to do
C
when to do
D
why to do
—Would you mind my___________ here?—___________. We can’t stand it!
#55152
A
smoke, OK.
B
smoking, Certainly not.
C
smoking, Of course.
D
smoking, You’d better not.