people have kept dogs for millions of years 为什么用have kepthe is so ___(careful)the SPCA ____(office)help save animalsyou must take ___(careful)of your dogl liked small dogs better than big oncesI___small dogs___big onesMy mother has come back
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people have kept dogs for millions of years 为什么用have kepthe is so ___(careful)the SPCA ____(office)help save animalsyou must take ___(careful)of your dogl liked small dogs better than big oncesI___small dogs___big onesMy mother has come back
people have kept dogs for millions of years 为什么用have kept
he is so ___(careful)
the SPCA ____(office)help save animals
you must take ___(careful)of your dog
l liked small dogs better than big onces
I___small dogs___big ones
My mother has come back from the office
My mother___ ___ from the office
It took me half an hour to get home from school by bus 划线half an hour
___ ___ ___ it take you to get home from school by bus
the students enioyed themselves in the park
The students___ ___ ___ ___in the park (保持原意)
原因+理由 尽快
people have kept dogs for millions of years 为什么用have kepthe is so ___(careful)the SPCA ____(office)help save animalsyou must take ___(careful)of your dogl liked small dogs better than big oncesI___small dogs___big onesMy mother has come back
for + 时间段,常与完成时态连用,动词也通常是延续性动词,have kept (= 已经饲养了)正好符合上述条件；
careful ; officers ; care ;
preferred ,to;
has returned;
How long did ;
had a good time