A.the explosion occurred much earlier than Lemaitre suggested
B.it is hard to see how matter could be formed in this way
C.the expansion of the universe is not a real one
D.new material is continually being created
A.they were closer together then
B.the universe has always looked as the same
C.their light takes so long to reach us
D.they have travelled such a long way
A.A clerk working in a gym.
B.A man running a bank.
C.A sportsman.
D.A historian.
A.was deep in thought of his past
B.was thinking of who Lee was
C.was thinking of how to teach his class
D.was having a talk with another passenger