My father has worked for 20 years in the field of medicine, so he has_______ a huge amount of experience.
#65347
A
achieved
B
piled
C
completed
D
accumulated
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 “How __ he ___ that?” all of them shouted
#80989
A
dare, said
B
dared, says
C
did, dared to say
D
did, dare to say
Mary is giving me English lessons          my teaching her Chinese.
#71928
A
exchange for
B
exchange
C
in exchange for
D
to exchange for