This young tree could not have been damaged ______accident; I believe it was done _____ purpose. 
#27499
A
by; on
B
for; with
C
by; with
D
for; on
推荐题目
 We keep in touch ____ writing often. 
#28387
A
with
B
of
C
on
D
by
Read the passage ______ which I__________ in my talk.
#26869
A
from; inferred
B
to; preferred
C
to; referred
D
to offered
The discovery of these tombs is _______ for scholars’ studying the history of the Tang Dynasty.
#27491
A
of very important
B
great importance
C
of great significance
D
great significant