______ well prepared you are, you still need a lot of luck in mountain climbing.
—It is raining hard. Will you go to your friend’s birthday party? —I promised him to go, but the heavy rain really places me in a ______. I’m not sure whether I will go or not.
—Do you think it’s a good idea to make friends with your students ? -- ________,I do .I think it’s a great idea .
The leader of the factory told us that very little ___ was made of the waste material in the past.
As I know, there is __________ in this school.
Mike came here ________ to see you, _____ after he heard that you had returned from abroad.