—How many teachers are there in your school?—______ them ______ over one hundred.A. The number of ; isB. The number of ; areC. A number of ; are
—Hi, Lucy. Your skirt is very nice. —____
My name ____ Jack. Liu Ying and Sun Mei ____ my friends.
Please help Jack ____ his bike. He can’t see it.
—Are the black shoes ____? —No. It’s ____.
—Does Mary know ____? —Yes, she knows ____.