The mountains form a natural            between the two countries so they have no trade relations in history.
#6961
A
exchange
B
bridge
C
barrier
D
fence
推荐题目
In my opinion, the most famous      to tourists in the city is the wooden tower.
#5715
A
attraction   
B
impression
C
instruction
D
expression
. The report about the ______ surprised all the ______.
#6505
A
present situation; people present
B
present situation; present people
C
situation present; people who present
D
situation present; presented people
As a war reporter, Jenny went through a lot of adventurous __________, which contributed to her rich _______ in her job.
#6068
A
experience; experience
B
experiences; experience
C
experience; experiences
D
experiences; experiences