—Hello, Mrs James. Is Sally at home? I want to play badminton with her.—________. She's gone for a walk across the fields.
China is becoming stronger and stronger and _________ an important role on the international stage in recent years.
Instead of blaming others for our failure, we should _________ what to do next and try our best to succeed in the future.
Look, the ground is wet. It must have rained last night, _________?
Air pollution results in stronger greenhouse effect, which __________ leads to global warming. We must take measures to prevent pollution before it is too late.
—What do you think of the Eight Rules of the central government? — Effective and ___________.