Now most families have only one child _____ our country’s one-child policy. A. since B. because C. because of
My mother is a nurse(护士) and is good _______ kids.
They need two _________ for their music club.
He can swim very well, ______ he doesn’t want to join the club.
Are you good at playing _______ guitar or _______ basketball?
What’s ____________ favourite subject? A.Ken B.Ken is C.Ken’s