________ in thought, he almost ran into the car in front of him.

It _______ for two hours now

By the middle of the 21st century, the vast majority of the world ’s population will be living in cities _______ in the country.

The government called out policemen to suppress the riot.

The missing boys were last seen ________ near the river.

The policeman came up to the lonely house with the door _______, _______ there for a while and then entered it.

依据确定主题的原则，谈谈如何确定班会主题?

_______ he goes, she will go, and she never cares _______ happens.

联系实际谈谈班主任在转化后进生的工作中应为其创造哪些条件?

______ the new plan can be carried out will be discussed at the meeting tomorrow.