TIME CLAUSES - EX ONE (4A)

When the steam train _____, it completely changed 19th century society, didn't it?

• was invented

• had invented

Outline villages which had been quiet, sleepy places before trains _____ became busy suburbs.

• arrived

• had arrived

Do you think people will lose interest in Olympic events when athletes _____ records?

• no longer break

• will no longer break

Newspapers and TV will always blow them out of proportion when they _____ .

• occur

• will occur

The key changed occurred when top sports people _____ being amateurs and devoted themselves full time to their sport.

• had stopped

• stopped

I can imagine the travelers degenerating into barbarism and fighting after they _____ several generations in space.

• will have spent

• have spent