design of the dialogue
tell me about your friend .
ok ，of course.
he has a big round eyes and tall.
is he quiet？
no ，he is outside.
there is a book store，let us to buy some books。
which book you prefer？chinese
books or english books？
i prefer english books.
what is the weather like today？
which weather do you like？cold or hot？
i like the hot day。
which coffee do you like？strong or weak？
ｉprefer strong coffee.
what color cup do you like？blue or red？
l like the blue one.
what do you want to eat？apple or grapes？
i want to eat the grapes。