It is essential that these application forms ______ back as early as possible.
I don’t think the risk they took ______ the poisonous snake is worthwhile.
--- Did you arrive at the stadium early yesterday afternoon?--- Yes. It was not yet 2 o’clock I got there.
You should make it a rule to leave things _______ you can find them again.
For many cities in China, there is no room to spread out further, _______ Yangzhou is an example.
The artist made up his mind to devote all he could his English before going abroad.