208、It's out of the question. 209、It's time for dinner. 210、It's up in the air. 211、It's up to date. 212、It's up to you. 213、It's very popular. 214、It's worth seeing. 215、Just let it be. 216、Just to be on the safe side. 217、Keep the change. 218、Keep up the good work. 219、Keep your fingers crossed. 220、Kill two birds with one stone. 221、Let me get back to you. 222、Let me guess. 223、Let me put it this way. 224、Let me see. 225、Let's call it a day. 226、Let's celebrate! 227、Let's find out. 228、Let's get to the point.
