AFTER HIS LONG ABSENCE FROM SCHOOL HE FOUND IT DIFFICULT TO...UP...

854. - 1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN
1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN

854. After his long absence from school he found it difficult to...up with the rest of his class.

A. catch

B. take

C. make

D. work