I put the medicine on the top of the desk to make sure it would not be _____ to my son.
—What are you busy with? —The conference _______ in our city next week.
When it was his turn to deliver his speech, , he walked towards the microphone.
_____ tomorrow, our ship will set sail for Macao.
The lawyer advised him to drop the , since he stood little chance to win.
—Excuse me, but could you tell me the way to Science Museum around here?—Sorry. There isn’t Science Museum nearby, I’m afraid.