________ came that another spaceship Shenzhou VII was successfully lifted off in our couvtry.

Ancient Greeks were responsible for many of the _______ in science and other fields.

We could not reason out the way the robbers escaped，because we were unable to find any ________ of them.

It is requested that the machine be operated according to the________．

Always read the_______on the bottle carefully and take the right amount 0f medicine。