The directions for operating this machine were so ______ that we could not understand.
#13758
A
various
B
different
C
fundamental
D
complex
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To pass the driving test, Alice had a busy month __________ driving the car.
#13244
A
to practise
B
practising
C
practised
D
practice
He has thrown away his old shoes.He’ll have to buy ____.
#14541
A
a new one
B
a new pair
C
some new pair
D
a new shoes
 The Olympic Games _____.
#14369
A
is held every four years
B
are held every four years
C
are held every the fourth years
D
are held every the forth years