THE EXISTENCE OF MANY STARS IN THE SKY ……… US TO SUSPECT THAT THRE...

15. - DE THI THU DAI HOC MON TIENG ANH VA DAP AN
DE THI THU DAI HOC MON TIENG ANH VA DAP AN
15. The existence of many stars in the sky ……… us to suspect that thre may be life on another planet.A. lead B. leading C. have led D. leads