1.
The device (will be working) when you come.
2. He (has been waiting for) this letter all
day long.
3. The engineer is busy, he (is replacing) the broken parts of
the engine at this the broken parts of the engine at this moment.
4. Now I (am preparing) for my examination and I have very little
time.
5. The children (have been listening) to the
interesting stories the whole evening.
6. Is this student ( writing) in his
note-book now?
7. Who (was cooking) dinner when you came in?
8. What was he (doing) when his friends came?
9. We (were listening) to the concert over the
radio at 5 oclock yesterday.
10. I (was finishing) my report at the meeting
at that time yesterday.