--It’s a fine day. Shall we go swimming?--_________.But we need to get home before six o’clock.
This _____ my brother. ______ is my friend.
–Is this your sister? -Yes, ________.
英文中的五个元音字母分别是_________.
— Sit down,please. — ________.
_______ name is Mark and ________ name is Liza.