The virus came without people’s being aware of it and it was _________ assumed to be a common one.But with more cases reported, it proved wrong.
These wild flowers are so special I would do _______ I can to save them.
Parents are taught to understand _______ important education is to their children’s future.
We cannot figure out _______ quite a number of insects, birds, and animals are dying out.
Is this the reason _______ at the meeting for his carelessness in his work?
_______ puzzles me most is that I don’t know _______ the difference between those two lies.