______ is often the case with a new idea, much preliminary activity and optimistic discussion produced no concrete proposals.

Which of the following tag questions is INCORRECT?

Please pardon ____ you.

Which of the following italicized parts indicates a predicate-object relationship?

The boys in the family are old enough for___.

Which of the following sentences indicates POSSIBILITY?

Which of the following sentences is INCORRECT?

Which of the following italicized parts is used as an object complement?

Which of the following sentences expresses a future action?

It is essential that he _____ all the facts first.

There ______nothing more for discussion, the meeting came to an end half an hour earlier.