John sings very well. We listened to sing a beautiful song yesterday.
| A．he | B．him | C．she | D．her |
My dad is often abroad on business.
A. travelling
B. on board
C. in a foreign country
The children were in trouble.
A. having good luck
B. in difficulty
C. in a traffic jam
Peter can learn the new words by heart.
A. keep...in mind
B. member
C. in memory of
Trust yourself and your own ideas.
A. Be sure B. Believe in C. Agree with
This problem seems difficult to solve.
A. looks at B. feels C. Appears