题目内容
With the door closed all day long, the headmaster________ on the plan for the new term. He hasn`t had his supper yet.
A works B. was working C. has been working D. has worked
C
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题目内容
With the door closed all day long, the headmaster________ on the plan for the new term. He hasn`t had his supper yet.
A works B. was working C. has been working D. has worked
C