Розкрийте дужки вживаючи дієслова в одному з таких часів: 1.The children (to skate ) for an hour.2.Since when theyv(to build) thix house?
1 The children have been skating for an hour. 2 Since when have they been building this house?
1. The children have been skating for an hour. 2. Since when have they been building this house?