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. Bill - to read detective stories for ... to read 2 stories. 4. Sally - to make pancakes since ... to make 50 big pancakes. 5. Roy - to watch videos for ... to see 2 films. 6. Jack - to train since ... - to throw the ball 100 meters. 7. Sarah - to wash up for ... to break a few plates. 8. The children - to plant flowers since ... - to plant a lot of primroses.

1. Sam has been riding a bike for a half of hour and has ridden 3 miles;

2. Mary had been doing the shopping since 4 o'clock and has bought a lot of food;

3. Bill has been reading detective stories for 3 hours and has read 2 stories;

4. Sally has been making pancakes since last Sunday and has made 50 big pancakes;

5. Roy has been watching videos for 5 hours and has seen 2 films;

6. Jack has been training since second grade and has thrown the ball 100 meters;

7. Sarah has been washing up for 30 minutes and has broken a few plates;

8. The children have been planting flowers since May and have planted a lot of primroses.