1. If we sit near____ front of the bus , we’ll have______ better view.
A. /, the B. /, a C. the, a D. the, the
2. The prize will go to the writer______ story shows the most imagination.
A. that B. which C. whose D. what
3. Scientists are convinced______ the positive effect of laughter______ physical and mental health.
A. of ; at B. by ; in C. of ; on D. on ; at
