— Do you know where David is ? I couldn’t find him anywhere. — Well. He ______ have gone far –his coat’s still here.
------ Go for a picnic this weekend, OK?--------______________. I love getting close to nature.
I’m sure you will do better in the test because you ________ so hard this year.
-------- The window is dirty. --------- I know. It __________ for weeks.
He is used to ___________ to his office in spite of bad weather.
On the top of the hill _________ where I once visited the monk窗体顶端窗体顶端