The money collected from ticket sales could be _______ food and clothes for the people in the flooded areas．

cost

paid off

spent on

paid back

It was playing computer games that _______ the boy plenty of time that he _______ doing his lessons．

spent; must have been

cost; ought to have spent

wasted; wouldn’t have been

took; can’t have spent

_______ in the dark, his head hit against a tree．

When walking

When he was walking

Walked

He was walking

The boy will make a lot of trouble when _______ alone．

leaving

leave

left

being left

_______ that none of us could follow him．

He spoke very fast

So fast he spoke

Too fast he spoke

So fast did he speak

If it is quite _______ to you, I will visit you next Tuesday．

convenient

fair

easy

comfortable

Facing this _______ problem, I found myself _______ about how to work it out．

puzzled; puzzled

puzzled; puzzling

puzzling; puzzled

puzzling; puzzling

There was a _______ look on her face so he got______．

puzzled; puzzled

puzzling; puzzling

puzzled; puzzled

puzzling; puzzled

In the army hospital, patients were fed on polished rice which _______ the outer coverings _______from the grain．

had; removed

had; had remove

had had; removed

had; removing

Yu Gong talked of the difficulty he _______ the mountains in front of his house．

had removed

had removing

removed

had to remove