____ are the birds doing?The birds are sing in the tree.选Where还是What 为什么?____ are the birds doing?The birds are sing in the tree.选Where还是What 为什么?

Two cats are ____ the tree.There are some birds in the tree.THey want to catch the birds!A.eating B.walking C.climing D.running There are mang birds ____ the tree.填介词 帮个忙.. ____ are the birds doing?The birds are sing in the tree.选Where还是What 为什么?____ are the birds doing?The birds are sing in the tree.选Where还是What 为什么? are the birds in the Where are the birds中文 you can make the world a d---- place for birds.To these birds and animals,cats are a great d----. There are ____ (a lot ,a lot of) birds in the tree. There are some birds in the tree.(改为否定句）There ____ ____birds in the tree. The day breaks ______the birds are singing.The day breaks ______the birds are singing.A:because B:and C:since D:for为什么?怎么翻译? 英语选择：Now day breaks,-----the birds are singingThe day breaks ______the birds are singing.A:because B:and C:since D:for选择并说明理由! There are some birds s___in the tree. there are many birds in the sky There are some birds singing( )the trees there are three birds in the (The sun is shining,birds are singing. what are the smallest birds on earth 连词成句：the flying are birds We are enjoying the birds( ).(sing)