He didn’t know English at all, so he can’t understand __________ the machine.
---Can you tell me what the Olympic motto(宗旨) is?------___________.
---Can you tell me something about Liu Yang?---Oh, she _____ the first Chinese woman astronaut to get into space.
— I feel tired and sleepy. — Why not consider_________?
— Attention, please. The plane has to be _________ because of the foggy weather.— Oh, bad luck! We have to wait now.
— How delicious the great turkey sandwich is! — Yes. It would taste _________ with more relish.