Thanks is a common _____ used in English. You can never use it too much.
We haven’t settled the question of it is necessary for him to study abroad.
—Excuse me, I wonder if you can help me. —Sure, ?
The country has already sent up 3 unmanned spacecraft, the most recent at the end of last March.
A study shows that students living in non-smoking dormitories are not likely to the habit of smoking.
—Did Alan enjoy seeing his old friends yesterday? —Yes, he did. He his old friends for a long time.