Ex 21 Study the following chart.
| The Present Continuous Tense | 1. She is in her room. She is looking through the morning newspapers. 2. They are working at this problem at present. |
| The Past Continuous Tense | 1. He was working in the garden at six in the morning (when I came home, after lunch, etc) 2. They were studying at the University in 1977. |
| The Future Continuous Tense | 1. I wonder what he will be doing at this time tomorrow. 2. They will be writing their course papers in April. 3. I can send the telegram. I'll be passing by the post-office. |






