The teacher spoke loud and clearly enough to make himself ________ by all his students.

I’m putting on weight The doctor has warned me to sugar

Unlike watching TV, reading is a highly active process (过程) _______ it requires attention as well as memory and imagination.

The time _________ I first spend with Nelson Mandela was a very difficult period of my life.

______, I still couldn’t figure out what theheadmaster said at the conference