_____ in the library regulations that any book borrowed be returned by due time, or the borrower will be fined．

—Could we complete the task according to the schedule?
—I doubt that．The problem remains _____ we can get financial aid from the government．

It is in Hong Kong _______ you’re going to find the cellphone _________ you have been wanting to buy.

He bought whatever caught his eye in the store _______ he often went .

He went to Paris the next year, ______ he lived and was never back.

Cheer up! Everyone may have periods in their lives     everything seems tough．

In spite of all     has been said，quite a lot of people are still uncertain about the prices of housing in China．

Look out! Don’t get too close to the house____ roof is under repair.

The reason ____ he explained to us was ____he overslept.

Laws have been passed in parts of South Africa, _____ governments either tax shoppers who use plastic bags or fine companies that hand them out.