I ______ a flu when I was on a spring outing with my classmates.

It’s easy to _________ this camera , while putting the pieces together is quite difficult, so you must keep the directions well.

To reduce the pressure of traffic in our city, the government _____ banning cars in the city centre.

It is not so much the possible trouble caused by helping others _______ people’s unwillingness to show their sympathy _________ accounts for the present situation.

______, education is about learning and the more you learn, the more equipped for life you are.