．I’d like to settle down somewhere ______the climate is mild and the sun shines all year long．

My grandpa sowed the flower seeds in the garden ______it was the best time for them to grow．

______ is even more important is ______ as the earth cooled down, water began to appear on its surface.
A. What, that           B. That, what          C, That, that           D. What, what

It was said ____that was _____ he succeeded in running his business.

There is a feeling in me _______ we’ll surely find a cure for Aids.

I don’t know ______ or not the books _____ to the homeless children next month are really useful.

A new library is being built _______ there was a playground .

It is really hard to find a nice place in this city         we can have a picnic.

Is it in this hospital_________my father had worked at _________ I was born?

．Those are model teachers, most of_________ are young women.