问题
It is only with the help of scientific research _____ bring PM1 air pollution under control.
A:that we will
B:we will
C:that we do
D:do we;
B:we will
C:that we do
D:do we;
正确答案是:
同类题型
Mom added some salt into the soup, ______ it still wasn’t salty enough.
______ the farmers discovered theentrance to the secret cave in the valley—Totally by chance
_______I know , the computer can never take the place of the human brain
I believe the scientists will______a betterway to heal the disease