Thebackgardenofourhousecontainsalawn，（）verypleasanttositoninsummer.
A
「句意」 我家的后花园有一片草坪，夏天坐在上面会令你心旷神怡。
「难点」 which 引出非限制性定语从句，在句中作主语，且和sit on 构成宾关系。类似的句子有：This room is comfortable to live in 这句中 live in 和 this room 构成动宾关系。
_____ regular training in nursing, she could hardly cope with the work at first.
_____ for the fact that she broke her leg, she might have passed the exam.
My mother was determined to help those in need and she would have been immensely proud of what has been achieved these last 20 years. The italicized part in the sentence expresses _______.
He noticed the helicopter hovering over the field. Then to his astonishment, he saw a rope ladder _____ out and three men climbing down it.