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 构成动宾关系。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。
YouthatlettertoJames.However，yodidn't（）.
Although____Spanish， he attended the course.
I never regretted _____ his offer, for it was not where my interest lay.
What a nice day! How about the three of us _____ a walk in the park nearby.