1.Air tickets are expensive.______,I've always wanted to visit Fiji.
a.On the other hand
b.Obviously
c.Besides

2.One light year equals 9.46 trillion kilometers.____,it's along distance.
a.additionally
b.in comparison
c.simply put

3.The assignment is due on Monday.____,you'll lose marks of it's late.
a.of course
b.to put it another way
c.in like manner