请根据句意从方框中选择合适的动词,并用其适当时态填空,使句子通顺。 小题1:The water in the river _________dirtier if nothing is done. 小题2:When I visited her last night, she __________by the fire and thinking. 小题3:My father _________to Beijing for his business last night. 小题4:I’m a singer is the most popular programme that I so far. 小题5:The geography teacher told us that Diaoyu Island ___________ in the east of China. |