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。
To obtain a satisfactory result ， one must apply two（） of paint on a clean surface.
Our（）sensitivitydecreaseswithage.Byage60，mostpeoplehavelost40percentoftheirabilitytosmelland50percentoftheirtastebuds.
Nancywassurprisedthattheyhave（），Theyseemedtobeahappycouple.
There are only ten apples left in the baskets, _____ the spoilt ones.