________evidencethatlanguageacquiringabilitymustbestimulated.

Therearesomepolicecarsinfront.Whatdoyousuppose_____?

Tina _____ have known the truth, or she would have told us.

Some 25,000 people were reported ______ in the ever recorded worst earthquake in Iran, which occurred late this month.

No matter how frequently _____ the works of Beethoven always attract a large number of people.