It is said _______has been translated into Chinese.
Fathers often feel __________ their duty to earn more money for their family.
--- ________ the class done most of the work? --- Yes, but the rest ___________ rather difficult.
The problem lies __________ we are now giving him a fish, not teaching him to fish.
We were lucky to have survived the train accident. _____, the first and last car were smashed.
Only after being attacked by the Japanese in Pearl Harbor ___in the Second World War thoroughly.