1.Fruit is cheapest __ season. 
A at  
B on   
C in   
D through

2. In their latest design, the company is clearly ___ the success of previous years.
A building up   
B building upon  
C building out   
D building over

3. In Beijing, the best season of the year is probably __ fall.
A later    
B last   
C latter   
D late

4. Even though he was guilty, the __ judge did not send him to prison. 
A merciful  
B impartial  
C conscientious   
D conspicuous

5. Although he thought he was helping us to prepare the dinner, he was actually __ the way.
A in   
B off   
C by   
D on

答案：CBDAA
1．C in season固定搭配，“旺季，当令”，如 Hotels cost more in season.

2. B build upon（on）“基于，依赖”，本句意思是：他们最新的计划显然是基于公司前几年的成功而制定的。
build up积累，逐渐增加，如He built up a bank account by saving regularly.
Build out加建，增建Extra classrooms were built out from the main block.
Build over盖满建筑物The woods where he used to play as a child have all gone. They are built over, of course.

3. D late（日夜，季节，时间等）近末尾，将尽的She returned in the alter afternoon.
Last刚过去的，与next相对。例如last fall去年秋天
later以后 You will be able to understand this later.
Latter（一段时间）末尾的The building will be finished in the latter half of the year.

4. A merciful慈悲的The lion is no more merciful than the tiger.
Impartial不偏袒的，公正的Law should be uniform and impartial.
Conscientious有责任心的，煞费苦心的She is a conscientious doctor.
Conspicuous引人注意的 She is always conspicuous because of her fashionable clothes.

5.A in the way挡道，防碍He social life got in the way of her studies.
By the way顺便说一下
on the way 在路上