Sometimes smiles around the world ________ be false, hiding other feelings like anger, fear or worry.

John, look at the time. ____ you play the piano at such a late hour?

--______do you spell your family name?—C-L-A-R-K,Clark. 

On Sundays ,the retired(退休的）minster_____ come to the farm and work with the farmers.

Unluckily, we missed the train. we    early.