1.A (广泛传播的) flu epidemic affected eighteen western states.
2.The two neighboring countries have expressed some (分歧) about the proposal.
3.In addition to these traditional activities,we have a wider (范围) of choices,such as travelling and visiting our relatives or friends.
4.The people who cannot quit smoking may easily be affected by his (情况) and surroundings.
5.The (平均数) of 3,6 and 9 is 6.
6.A child who can remember 3,000 English words at the age of 3 would be called an unusual (现象).