未知题型 Convenience foods which are already prepared for cooking are ________ in grocery stores.A) ready B) approachableC) probable D) available

未知题型 Please be careful when you are drinking coffee in case you __________ the new carpet.A) crash B) polluteC) spot D) stain

未知题型 Mr. Morgan can be very sad __________, though in public he is extremely cheerful.A) by himself B) in personC) in private D) as individual