—_______you spell “pen”? —P-E-N, pen.
| A．How are | B．What do | C．How do | D．What are |
All the students in my class can’t ______ the math problem. It’s too difficult for us.
A. work on B. work out C. work for
My father was watching TV ______ my mother was cooking.
A. while B. until C. when
She will call you if she ____.
A. goes to B. come back C. comes back
—Where is Japan, do you know?
—It’s ____ the east of China.
A. in B.on C. to
My parents are always strict ____ me.
A. with B. in C. on