It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off.
--__________ was it_________ they discovered the entrance to the underground place? --Totally by chance.
The amount of money _______for the seriously sick child was soon collected.
Their tent,__________ light as a feather, remained firm in the storm last night.
--The news is spreading from mouth to mouth. --Yes, it has become__________ talk of__________ town.
Why haven't you finished your homework yet? You___________ to have finished it by last Sunday.