--- How long will it be ________ the Stock(股票) Market returns to normal? --- At least one year, I guess.
The meat smells _________. You’d better throw it away.
Although the teacher had told Bob the history of telephone, Bob didn’t know when ____.
What happened _______ Jim? He looks really upset.
Did you know the Earth is home to __________ animals?
Can you take a __________ for Jenny, please?