It took me half an hour to write the letter.
It takes sb some time to do(某人用多长时间做某事)
因为It是三单,所以take变takes,而题目中spent是过去式,故take变took.
It took me half an hour to write the letter.
It takes sb some time to do(某人用多长时间做某事)
因为It是三单,所以take变takes,而题目中spent是过去式,故take变took.