don't give up ____ (尽力)to help him 填空题
It is ____ (有必要的)for him to have a talk with his parents 填空题
we are helping the workers ________ (清除) that dirty river 填空题
----Who ____ （knock）at the door?
----l don't know .let me go and see.
He achieved his dream(画横线) in the end ?对划线部分提问
他没在家而是去了上海
He didn't at home ____ ____ ____ to shanghai.
马上要月考了 .帮帮忙啦会的.