Space exploration has been made __________ with the development of modern science and technology.
The policemen rushed to the place a bank robbery(抢劫案) had happened, but the robbers(抢劫者) had disappeared from sight.
You will make much progress in English you work hard.
So seriously that he had to stop playing in the football match
It will be a long time we reach the little town.
The teacher called Tom to his office because he was caught in the exam.