Nowadays many farmers want to ___ farming and make a living in cities.
—It is _______he often fails in exams_______ makes his parents worried about him.—So, he has to work whole-heartedly.
_______he couldn't understand was_________more and more students showed interest in the computer games.
In some countries, ______ is called “equality” does not really mean equal rights for all people.
The news came, as expected, __________ my cousin was chosen to be a foreign aid doctor to go to Africa where people are suffering a lot from aids.
I try to understand __________ that prevents so many Chinese from being as happy as one might expect.