All the nations，powerful or not，should be ________harmony with each other.

Where is my notebook Have you seen_____________—Oh, sorry, I have taken __________ by mistake.

16. It is reported that they ____ arms and began to fight against the invaders (侵略者).

The success of a government should be measured the health and happiness of the people as well as the development of economy

Did you stay up very late last night?——No，It was not 10 o’clock yet ____I went to bed