In hot summer, we should pay attention to protecting ourselves _____ strong sunlight. 
#46529
A
from
B
for
C
with
D
to
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He is young,but he can do something________.
#46857
A
on his own
B
on her own
C
on my own
D
on their own
My sister has learnt English        .
#47780
A
for twelve years ago
B
since she was four
C
twelve years ago
D
at the age of four