Complete each sentence with the correct form of the verb in brackets.

1 The market.....(open) at 5 am, so Mark has to get up at 4 am.
2 Once I start working there, nobody who enters the shop......(leave) without buying something.
3 Kelly has made a promise to herself – she......(be) the best waitress in the café.
4 This time next Saturday, we......(serve) ice creams to tourists!
5 By the end of the year, I hope I........(save) up enough money to buy a bike.