---You may find the key to the maths problem on page 107 . ---Ah, it’s so simple . I wonder why I of that .
----- Have you finished all of the exercises?---- Yes, completely. _____is left.
The population of China is larger than____ of Japan.
This Englishman is good at writing, reading and _____ is kind to others.
What he said,_____, has nothing to do with what he did.
—— There will be a storm soon. —— I am afrai?_____.