1. Use since ou for nas frases abaixo:
1.Her grandparents walk __________thirty minutes a day.
2.That lady has been waiting ___________ the train since noon.
3.I haven't eaten anything ___________ breakfast.
4.Barbara and Larry have been at the office __________ a long time.
5.I have been calling my mother __________ half an hour.
6.My family has lived here __________ last summer.
7.I studied for this test _____________ seven days straight.
8.He has worked there _____________ he finished college.
9.Matthew has been asleep ____________ only a few minutes.
10.Tourism has been increasing _____________ the end of last year.