单项选择题
The beauty of the reflected images in the limpid pool w...
单项选择题The beauty of the reflected images in the limpid pool was the poignant beauty of things that are ______, exist only until the sunset.
If you want to go to the concert, you"ll have to make a...
单项选择题If you want to go to the concert, you"ll have to make a ______ ,or there will be no tickets.
The market for dust masks and air purifiers is ______ i...
单项选择题The market for dust masks and air purifiers is ______ in Beijing because the capital has been shrouded for several days in thick fog and haze.