SHE HAD TO WORK ………...A. HARD B. DIFFICULTLY C. HARDLY D. DIFFIC...

21. - KIEM TRA HK II LAN 1 4 MA DE CO DAP AN
KIEM TRA HK II LAN 1 4 MA DE CO DAP AN
21.

She had to work

………..

.

A. hard B. difficultly C. hardly D. difficult