孙中山先生在探索中国近代化的过程中领导了辛亥革命。这次革命是历史性巨变。主要原因是( )
I don't know the words to a lot of songs,but I do know some folk songs that my grandma ______ me at an early age.( )
teaches
taught
will teach
has taught
The performer ______ because there was too much noise coming from the crowd.( )
continued
relaxed
stopped
won
When you go rock climbing,you need to be careful so that you don't have a(n) ______.( )
chance
accident
secret
action
I'm pretty good at tennis. Actually,I'm probably _____ in the club.( )
worse
good
better
the best
It was great in the end ______ we had a terrible time at the beginning.( )
if
unless
when
although