He said it was _____ impossible to buy the novel which was _____ worth reading.
—Shall I wait here for three hours? —Yes. Three hours ______for you to wait for such a doctor.
If nothing______, the oceans will turn into fish deserts.
The Philippines lies ______ the south of China, but Guangdong Province lies ______ the south of China.
In the dark forests______, some large enough to hold several English towns.
—I hear you saw the film Taijiong last night. ______? —It’s totally fascinating.