-------The weather is terrible now; our earth is badly damaged!-------Yes. It’s urgent that everyone _________ spare no effort to do something to save our world .
Sometimes our opinions differ _______ what we choose to observe and how we deal with what we’ve observed
The writer is not satisfied with _______ buses are too crowded.
Their belief is proved by the fact that the death penalty prevents murder.
What he said at the meeting referred to _______ he was interested in the project.
She must face up to _______ she is no longer young.