THE EXISTENCE OF MANY STARS IN THE SKY ___ US TO SUSPECT THAT THER...

55. - CAU TRAC NGHIEM TONG HOP TIENG ANH
CAU TRAC NGHIEM TONG HOP TIENG ANH
55. The existence of many stars in the sky ___ us to suspect that there may be life on another planet. A. lead B. leading C. have led D. leads