PERSONAL EXPERIENCESA. PHONETICSI. CHOOSE THE WORD WHOSE UNDERLINED PA...

15) - BAI TAP TRAC NGHIEM TIENG ANH 11
BAI TAP TRAC NGHIEM TIENG ANH 11

15) Andrew ... the test before so he... it very easy.

A. did/had found B. had done/found

C. was doing/found D. did/was founding