You can’t imagine what great trouble I had ____ his address.
---He seems to be a teacher.---______. He has been a teacher for 20 years.
— The “No.1 Document” is designed to help the rural population increase their incomes.— I believe that peasants’ life _____ better and better.
In the exam , the you are, the mistakes you’ll make.
—When shall we start?—Let's _____ the time for the trip. What about 8:30? Is that all right?
Don’tspend time beating ona wall, to change it into a door.