题目内容
(请给出正确答案)
[主观题]
Mack is very busy; he is a full-time student, while ______ a part-time job.A.to holdB.bein
Mack is very busy; he is a full-time student, while ______ a part-time job.
A.to hold
B.being held
C.held
D.holding
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