The hospital opened 5 years ago. It_______ for 5 years.
I am wondering ________ my invitation and join me for the trip to Hainan this summer.
They have discussed the plan for some hours but no agreement ________.
I had waited for several weeks without __________ Sam so I e-mailed him again.
--- Attention please. Your project ________ be finished by the end of this week.--- But we are up to our necks in work. ________ we finish it the next week?
In the last year alone, more than 260 types of animals disappeared or became more ________.