题目

已知一个直角三角形三个内角的正弦值成等比数列，则其中最小内角的正弦值是      ． 答案：完形填空。 Dear Mother, 　　I'm writing to you from our hotel at Moon Beach. Peter and I are (1) with children from other countries for a few days. We're happy to be (2) , but to tell you the truth, we're having a few problems（问题）. 　　 (3) isn't very good. In fact, it's rainy and cold. Right now I'm looking out of the window and it's raining cats and dogs. Children can't (4) out. They aren't happy. They are having a (5) time now. Right now they're sitting on the bed with nothing to do. 　　The restaurants here are not (6) , and the food isn't very good, either. Peter is in the (7) office because he's having problems with his stomach（胃）. But don't worry. He will be OK soon. 　　All the other hotels here are beautiful and new. But our hotel is ugly and (8) . In fact, a few people live in our hotel. 　　As you can (9) , Mum, we're having so many problems here at Moon Beach, but we're happy. We don't (10) to do homework here, and we're happy to be together. 　　See you soon. 　　Love, 　　Lucy (1) A．on holiday B．at work C．on a trip (2) A．there B．here C．where (3) A．The beach B．The food C．The weather (4) A．come B．go C．look (5) A．good B．nice C．bad (6) A．clean B．cheap C．good (7) A．doctor's B．teacher's C．manager's (8) A．small B．dull C．old (9) A．see B．know C．think (10)A．want B．have C．like