--What color is your schoolbag, Gina? --It’s ___________orange.
| A．a | B．the | C．an | D．\ |
I wonder _______ my parents will come back next month.
A. that B. if C,. What
The teacher was ______ angry _______ say anything.
A. so, that B. such ,that C. too, to
Mrs. Wang advised us _______ the math problem in another way.
A. solve B. solving C. to solve
You can imagine _________ strange it was!
A. what a B. how C, what
Do you know when the first train __________ in China?
A. was produced B. is produced C. Produced