Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.
A. of; at B. by; in C. of; on D. on; at
---I’m going out tonight.
---Well, I’d rather you ______.
A. not B. aren’t C. didn’t D. won’t
Bitten twice, the postman refused to ______ our letters unless we changed our dog.
A. deserve B. deliver C. expand D. direct
______ to go abroad alone is what worries me most.
A. The boy not allowing
B. The boy not being allowed
C. The boy’s being not allowed
D. The boy’s not being allowed
When I said someone was stupid, I didn’t ______ you.
A. stick to B. refer to
C. lead to D. devote to
Those who are not ______ with the progress they have made will have greater success.
A. proud B. willing C. popular D. content
