THE STUDENTS ARE USED TO --- IN THE SCHOOL LIBRARY. A. WORKING B....

17. - KIEM TRA 1TIET BAI SO 1 HOC KY 2 KHOI 12 CB
KIEM TRA 1TIET BAI SO 1 HOC KY 2 KHOI 12 CB
17. The students are used to --- in the school library. A. working B. work C. to work D. worked