问题补充：
---Hello, can I speak to Robert, please?
---Hold on, please. He in the garage.
A. has worked
B. is working
C. worked
D. will work
答案：
A. has worked
(答案→)B. is working
C. worked
D. will work
解析：考查时态。句意：--嗨，我能找一下罗伯特吗？--请稍等。他正在修理店工作呢。根据答语可知，是正在发生的事情，应该用现在进行时，故选B。
