------Do you mind if I keep pets in this building?------_____.
The reason why he failed is ______ he was too careless.
We were about to climb up to the top of the mountain ________ it began to rain heavily.
—How do you find my idea? —_______.
Don’t you think that______________ is no use promising without doing?
Is this the girl______ whom I can turn for help? Is she good at this subject?