作业帮I spend time as much as I could _____ the math problem.A.work outB.to work outC.working outD.to work on
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I spend time as much as I could _____ the math problem.A.work outB.to work outC.working outD.to work on
I spend time as much as I could _____ the math problem.
A.work out
B.to work out
C.working out
D.to work on
I spend time as much as I could _____ the math problem.A.work outB.to work outC.working outD.to work on
C
我尽可能地花时间来解决数学问题
这里的句型是spend time in doing sth
in 可以省略
B.to work out
spend some time (in) doing sth.
C
c
c
C
spend……doing sth
spend^……on sth
这是两个关于spend 的固定词组，work out/on 是动词词组，所以应套用第一个，用working
time as much as I could可以看作是“……”部分的内容
C
spend some time (in) doing sth或者spend some time on sth.
work out算出，做出，解决
C
我尽可能地花时间计算数学问题
spend time （in） doing sth 是固定搭配
C spend some time (in) doing sth.固定搭配哈～
C
C
spend time doing是一个固定搭配，而句子的主要部分是"I spend time ...",时态就应改用句子主干的时态，所以用doing形式，与could无关，故选C。