Question

perfect tenses For this section of the test, read each sentence carefully, then fill in the blank spaces with the correct form of the verb given in the parentheses (...). By the time Scott graduated from college last May, he (study) ______chemistry for four years.

Answer 1

Had studied

Step-by-step explanation:

By the time Scott graduated from college last May, he (study) ______chemistry for four years.

Substitute