Some children want to challenge themselves by learning a language different from ______ their parents speak at home.
No student likes ________ in the teacher’s face during the class.
—I’ m sorry that I have broken your glasses.— ____________!
______ is often the case, we have worked out the production plan.
The flu is believed _____by viruses that like to reproduce in the cells inside the human nose and throat.
—How did you find the talk this morning? —______.