Вставить слова 1. Sam — to ride a bike for… — to ride 3 miles. 2. Mary — to do the shopping since… — to buy a lot of food.3.…

1. Sam has been riding a bike for 15 minutes and has ridden 3 miles.2. Mary had been doing the shopping since 10 o*clock and has bought a lot of food.3. Bill has been reading detective stories for 4 days and has read 2 stories.4. Sally has been making pancakes since early morning and has made 50 big pancakes.5. Roy has been watching videos for 4 hours and has seen 2 films.6. Jack has been training since childhood and has thrown the ball 100 meters.7. Sarah has been washing up for 2 minutes and has broken a few plates.8. The children have been planting flowers since Monday and have planted a lot of primroses.