I SPENT HOURS ... FOR THIS BOOK. A. LOOK B. TO LOOK C. LOOKING...

735. - 1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN
1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN

735. I spent hours ... for this book.

A. look

B. to look

C. looking

D. looked