根据句意及首字母或汉语提示完成单词。
小题1:If you go to the park in summer, you will enjoy v            flowers.
小题2:Tom，please throw the rubbish into the         （垃圾桶）.
小题3:You can’t see the words on the blackboard clearly. I can’t，e      .
小题4:If you agree with me，n       your head.
小题5:The students were s      the floor when Mr Wu came in.
小题6:The financial crisis (金融危机) made a great change to Americans’ e             lives.
小题7:With the help of my teacher , I have made great ________(进步)in this term.
小题8:To tell you the ______(true), I felt sad when I missed the chance.
小题9:The police think the man in red is one of the ___________ (rob)
小题10:Our planet, Earth is becoming more and more crowded and _________ (pollute).
小题11:The teacher told us that light__________(travel) much faster than sound.
小题12:It’s necessary for us ______________(do)some exercise before the final exam.
小题13:We _____________ (run) outside when you called us at this time yesterday.
小题14:---Why not ________(buy) a toy car for your son .
---Good idea. He must like it very much .
小题15:Linda spends as much time as she can _____________(practice) reading English.