IT ... DANGEROUS TO SWIM IN DEEP RIVERS. A. ARE B....

127. - 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

127. It ... dangerous to swim in deep rivers.

A. are

B. is C. being

D. be