I have had great deal of trouble ________ the rest of the class.
I have had great deal of trouble ________ the rest of the class.
A、coming up against
B、making up for
C、keeping up with
D、living up to
【正确答案】：C
【题目解析】： have trouble doing sth.在做某事上有困难。keep up with赶上，追上 
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