BOOKSCHOOSE THE WORD WHOSE UNDERLINED PART IS PRONOUNCED DIFFERENTLY...

28. - TONG HOP BAI TAP TRAC NGHIEM TU LUAN TIENG ANH LOP 12 UNIT 11 BOOKS CO DAP AN 28. - TONG HOP BAI TAP TRAC NGHIEM TU LUAN TIENG ANH LOP 12 UNIT 11 BOOKS CO DAP AN
TONG HOP BAI TAP TRAC NGHIEM TU LUAN TIENG ANH LOP 12 UNIT 11 BOOKS CO DAP AN

28. We found the exam extremely easy. We ________ so hard.

a. needn't study

b. needn't be studying

c. needn't have studied

d. needn't have been studied