.The Flight Company _________ its costomers top-quality service.
#4743
A
provides
B
guarantees
C
gathers
D
applies
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Go and see her whenever _____. 
#4729
A
it will be convenient to you
B
you will be convenient
C
it is convenient to you
D
you are convenient
 I prefer _______ to __________ in my spare time.
#4699
A
singing… dancing
B
sing… dance
C
to sing... dance
D
to sing…dancing