Question

_____ they are fit, I see no reason why they shouldn't go on playing basketball for another four or five years.

A．In case

B．Provided that

C．Unless

D．As if

Answer 1

B

试题分析：A. In case以防，万一，B. Provided that假如，条件是，C. Unless 除非，D. As if如果，句意：如果他们是健康的，我看不出他们为什么不应该再打四五年篮球。选B。