—Many houses near the airport were destroyed by the wind.—Well, the wind ________ have been very strong.
They are considering______ they should do the experiment .
Lincoln, ______ President of ______ United States, was assasinated(暗杀)on April 14th , 1865 .
Why ______ a bad idea to ask Amy for advice?
Which is ______ country, Canada or Australia?
I don't think the bottle's broken, ______?