HE IS VERY WORRIED _______ HIS NEW JOB BECAUSE HE IS NOT QUITE PRE...

46. - KIEM TRA 1 TIET AV 12
Tiếng Anh KIEM TRA 1 TIET AV 12

46. He is very worried _______ his new job because he is not quite prepared _______ working.

A. on / over

B. to / off

C. about / for

D. in / at