在市场上购买衣服时,你看到的表示大中小号的字母依次是:
There is ______ elephant in the zoo.______ elephant is from Africa.
Where _____ your pen pal _____ from ?
Emma ,can you introduce _______ to Alice ?I want to meet her .
Do you know ____________________?
The Blacks will be back from their holiday ______two days.