To save class time, our teacher has ___ students do half of the exercises in class and complete the other half for our homework.
John felt very embarrassed ________ he entered the government hall.
We live too far from the city to get a strong TV ________.
It was last Saturday ________ we visited the History Museum.
I suggested that the problem _____as soon as possible.
When ________ to the market, these products were very popular.