I HAVE BEEN WAITING FORYOU…... A. SINCE EARLYMORNINGB. SINCE 9 A.M...

15. - TONG HOP BAI TAP TRAC NGHIEM VE CAC THI TRONG TIENG ANH
TONG HOP BAI TAP TRAC NGHIEM VE CAC THI TRONG TIENG ANH

15.

I have been waiting for

you…... A. since early

morning

B. since 9 a.m C.

for two hours D.

all are correct