完成句子 1. 要是他记着寄那封信就好了. ___ ____ ____ ____   ____ to send that letter. 2. 能和别人谈谈这件事,感到舒心多了. It was____  ____ to be able to talk to someone about it. 3. 在这个非常时刻我们必须尽量保持高昂的情绪. At the unusual time,we must try to____ ____ ____ ____. 4. 到被救时,汤姆已在暴风雨中挣扎了四个小时. Tom____ ____ _____ _____ ____the storm for 4 hours by the time he was saved. 5. 这本书漂亮的封面引起了孩子们的注意. The beautiful cover of the book____ ____ ____ .