____ you promise to buy her a gift, you can’t break it in any case.
A. Once B. Until C. For D. That
He realized she was crying ________ what he had sad.
A. because B. because of C. as D. since
They said to us, “Are you afraid to leave this house ?”
They asked us ____ afraid to leave _____ house. A. that were we…this B. that we were…that
C. if were we …this D. if we were…that
The number of people in their class _______51.
A. is B. are C. does D .has
It was in New Zealand ______ Elizabeth first met Mr.Smith.
A．that B．how C．which D．when
Autumn coming, the leaves have ________turned into brown color.
A. frequently B. gradually C. exactly D. regularly
