Five units of this textbook ________________ (study) by the end of last month.
举一反三
- By the end of last month, they ________ English for five years.
- The output of our company this month is _______ that of last month.
- The new bridge ______ at the end of last month.
- — Did Stacey go travelling last month? — Yes, she ____ in Seattle last month.
- I spent ______ money this month than last month. （little）