Mr. Black is a careful and experienfed engineer, so he is often _____ to finish some challenging tasks.
He must have known the truth yesterday, _________?
To our great surprise, we got _____ people to attend the conference as we expected.
_____ all our efforts to save the school, the authorities decided to close it.
----You forgot your purse when you went out. ------Good heavens, _________
_____ to make a speech, he said he would be glad to.