Thebackgardenofourhousecontainsalawn，（）verypleasanttositoninsummer.
A、whichisA
「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。
Theteachers’union_________alawsuitagainstthedistrictcallingforrepairing“deplorable”schoolconditions.
LastMarchthe__________ofa19thcenturycargoshipwasfoundbyanunderwaterarchaeologicalteam.
Thismissileisdesignedsothatonce_____nothingcanbedonetoretrieveit.
IfonlyI_____playtheguitaraswellasyou!
Thesmallmountainvillagewas（）bythesnowformorethanonemonth.
