My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive .

It was __    _ that he had to ask for help.

As is known to all language learners, the newly learnt words will soon be forgotten unless ______ used in everyday communication.

 Tom was caught cheating in an important exam. _____, he lost a golden chance of taking part in this competition.

We have a slight problem with the temperature control but_______ everything’s fine.