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A.360°
B.540°
C.720°
D.900°
A.when will we have the singing competition
B.when we will have the singing competition
C.where will we have the singing competition
D.where we will have the singing competition
A.3a+2b =5ab
B.5a—2b=3
C.7a+a=7a²
D.(x-1)²=x²+1-2x
A.are planted
B.were planted
C.plant
D.planted
A.important
B.more important
C.most important
D.the most important
A.if
B.so
C.unless
D.until
A.explains
B.explained
C.is explaining
D.has explained
A.she
B.her
C.hers
D.herself
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