“HURRY UP! WE’RE WAITING FOR YOU. WHAT’S TAKING YOU SO LONG

21. - BAI TAP TRAC NGHIEM VE CAC THI TRONG TIENG ANH
BAI TAP TRAC NGHIEM VE CAC THI TRONG TIENG ANH

21. “Hurry up! We’re waiting for you. What’s taking you so long?”

“I for an important phone call. Go ahead and leave without me.”

A. Wait B. will wait C. am waiting D. have waited