4. In fact, his keys ________.'
A. were swallowed by his little son B. were on a coffee table C. were left in the car D. were put in his wife's bag 5. From the passage we can see _________. A. Betty Sanders likes her work
B. Betty's job is to place long-distance calls for people C. the man' s little boy likes playing with keys D. doctors can help people find keys
6
