_______(15)
A.that
B.so
C.for
D.even

Many moved here in 1987. Living
A.Mary has been living here since 1987
B.Mary has living here since 1987
C.Mary was been living here since 1987
D.Mary has been living here for 1987

________(79)
A.place
B.seat
C.head
D.office

________(77)
A.stand
B.live
C.are founded
D.are hold

________(76)
A.for
B.which
C.where
D.that

________(74)
A.lengthens
B.extends
C.enlarges
D.stretches

How do bats help reforest the land?
A.By eating pests
B.By hanging upside down in trees at night
C.By excreting seeds
D.By taking evasive action

The word “emit” is closet in meaning to .
A.Send
B.continue
C.find
D.stop

Where in the passage does the author refer to the visual range of bats?
A.line 4-5
B.line 6-7
C.line 7-9
D.line 10-11

The word “Some” refers to .
A.Social systems
B.Specialized roles
C.Bats
D.Colonies