I HAVE BEEN WAITING FOR YOU…………..A.SINCE EARLY MORNING B.SINCE 9.AM...

67. - BAI KIEM TRA 1 TIET SO 1 UNIT1UNIT3 E12
BAI KIEM TRA 1 TIET SO 1 UNIT1UNIT3 E12

67.I have been waiting for you…………..

a.since early morning

b.since 9.am

c.for two hours

d.all are correct