The police officers here do not usually_____ guns.
Could you drive me to the bookstore at noon if________?A. it’s convenient of youB. it’s convenient to youC you are convenientD. you will be convenient
Children should be taught at an early age to keep ______even in a difficult situation.
What great trouble we had _________ where his house was.
--Shall I open the window?--I’d rather _________.
_____ to strong sunlight for a long time will do harm to your skin.