IT’S VERY KIND………..YOU TO TELL ME ALL THIS.A. AT B. IN C. TO D. O...

513. - E 10 BAI TAP TRAC NGHIEM GIOI TU
E 10 BAI TAP TRAC NGHIEM GIOI TU

513. It’s very kind………..you to tell me all this.

A. at B. in C. to D. of