【题目】It is_________( possible ) for the little boy to finish such difficult work in half an hour.

【题目】He decided to help the doctors and nurses go home without_____.(hesitate)

【题目】His mother looked_____at his son’s bad record.(disappoint)

【题目】He has never been greatly concerned about his_____.(disappear)

【题目】To our surprise, the American president Trump can speak Chinese very_____.(fluency)

【题目】After graduation, he worked at a panda base instead of_____his study.(far)

【题目】With the help of the Internet, we may have access to a wide_____of free online resources.(various)

【题目】— You look sad. What has happened?

【题目】Some holes ________ (dig) yesterday. We can put the young trees in them now.

【题目】It rained______last night. ( heavy)