they,the tree,sing,now,under.用现在进行时连词成句没有"be"动词,怎么办?是不是故意不给的?

they,the,tree,sing,now,under(连接现在进行时的疑问句) Look,the bird_____(sing) on the tree. 连词成句：they,the,tree,sing,now,under.(用现在进行时连词成句)感激不尽!速度! They are u----- the tree. Look,the birds ______(sing) in the tree. 适当形式填空 Listen,the birds in the tree (sing) Listen,the birds ________________ (sing) in the tree There is a bird____[sing]in the tree Listen!What___ the woman _____(sing)under the apple tree?用sing的正确形式填空 they,the tree,sing,now,under.用现在进行时连词成句没有be动词,怎么办?是不是故意不给的? They are under the tree.____ ____they? They tend the tree with care.翻译. They are nuder the tree是什么意思 What the children (do) this afternoon?They (sing).What the children (do) this afternoon?They (sing). who's the n() one to sing? 用bird,sing,tree造句 Listen!Can you hear birds（ ）in the tree?A.sing B.to sing C.sings D.singing A bird was heard __________in the tree just now.A.singing B.sing C.to sing D.sang