— I visited the Purple Mountain Observatory last Sunday.
一 _______ Why didn't you tell me earlier?
A:You did?
B:I hope so.
C:Have a good time.
下列属于淡水中的腔肠动物的是( )
— Where is your father?
— He ________ the World Cup in the living room.
______ earthquake happened on ______ morning of April 14th in Yushu, Qinghai. By far, over 2,000 people have died.
小冬兰家养了a只黑兔,养的白兔比黑兔只数的4倍还多2只.养了____ 只白兔.