Seven ___ teachers and students plant ____trees in spring every year.
A. hundreds； thousand of B. hundred； thousands of
C. hundred； thousand of D. hundreds； thousands of
Now parents find it difficult______ with their children.
A. talk B. talked
C. talking D. to talk
Tom’s father____ to London last month. He ______ there three times.
A. went； has gone B. has gone； has been
C. went； has been D. has been； has gone
- _______ Sally_______ her homework?
- Yes， she has.
A. Does； finish B. Did； finish
C. Has； finished D. Have； finished
---What’s the matter with my son， doctor?
--- ______ .
A. Serious nothing. B. Nothing serious.
C. Serious anything. D. Anything serious.
Jenny _____ China before. Jenny _____ China two years ago.
A. visits； visited B. visited； has visited
C. has visited； visited D. has visited； has visited
