We should learn how to value what we have ______ it is too late.
When she heard the news, tears came to her eyes.
You don't need to describe her. Iher several times.
Did you pay a visit to the Great Wall .the time when you were in Beijing?
The liftyesterday. We’ll have to walk up to the eighth floor this evening.
Do you mind if I open the window? I feel a bit cold.