It is said that robots can do many things___ humans can’t do ______the control of computers.

a pause for a drink, I took up my story just_______ I had left off.

go there by ____train ,you can have quite acomfortable journey ,but make sure you get ___fast one.

ncers, all of _______ masks came off suddenly,gave us a great surprise

______ has been announced, we shall have the singing competition next month.