---THEIR INTEREST IN COUMETS, THEY DECIDED TO STUDY ASTRONOMY. A....

Question

2.---their interest in coumets, they decided to study astronomy.    A. Unless      B. As if      C.even if      D.Because of.

Answer

2.---their interest in coumets, they decided to study astronomy.    A. Unless      B. As if      C.even if      D.Because of.