The police found the lost car _____.  
#48414
A
by mistake
B
by accident
C
with mistake
D
in accident
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LangLang has a gift for             piano.
#50041
A
playing
B
play the
C
playing the
D
making the
If you work hard, it’s not so difficult ___________ you _____________English well.
#48770
A
of; learn
B
for; to learn
C
of; to learn
D
for; learn