根据句意,用方框中所给单词的适当形式填空。(每小题1分,共5分)。 polite work write speak understand 小题1:Mr. Green spoke very loudly so that he could make himself___________ at the meeting. 小题2:There are many English ___________ in the world. They think speaking English is very popular. 小题3:Do you have any trouble _________ out this math problem . 小题4:Some people think it is__________ to ask someone’s age. 小题5:___________ English is not the same as oral English.