Tipping is neither encouraged nor common, although visitors may reward special services if they wish, _________ 10% of the bill is enough.A which B where C in which D in which case
Miss Green contributed fifty dollars, but she wished she could contribute _____.
When _____ different cultures, we often pay attention only to the differences without noticing the similarities.
Hundreds of species are declared to _____ in the coming century.
It was playing computer games ____ cost the boy plenty of time ____ he ought to have spent doing his lessons.
We _____ live in a small flat but last year we bought a house.