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
In class 20 there are 60 students, more than half_____ wear glasses.
---Sorry, madam, you can’t get on the train. This is _____ old ticket.---Oh! It’s out of _____ date.
The _____look on Sam’s face suggested that there must have been something _____ on his way to school.
Walking is a good way to keep fit. _______, swimming is helpful for your health.
The president spoke at the business meeting for nearly an hour without _____ his notes.