GRAMMAR EXERCISES I. Study Substitution Tables No. 1—5 and compose as many sentences as you can.

II. Change each of these sentences using the Future Continuous:

1. At 10 o’clock he was still working at the laboratory. 2. My friend was preparing for her written test when I came. 3. Were you waiting for me at the station at 8 o’clock in the morning?

4. Was his friend giving a lesson at 5 o’clock? 5. My nephew was repairing our vacuum-cleaner at 7. 6. My uncle was listening to the news when I went to bed. 7. My aunt was knitting the whole morning.

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A camel is an even-toed ungulate within the genus Camelus, bearing distinctive fatty deposits known as "humps" on its back. The two surviving species of camel are the dromedary, or one-humped camel (C. dromedarius), which inhabits the Middle East and the Horn of Africa; and the bactrian, or two-humped camel (C. bactrianus), which inhabits Central Asia. Both species have been domesticated; they provide milk, meat, hair for textiles or goods such as felted pouches, and are working animals with tasks ranging from human transport to bearing loads.

We had packed our things before we went to the airport
Everybody had left the house before eva came to the party
Tom had worked as a driver for 5 years after that ted found a good office job
The secretary had sent a fax and prepared a cup of coffee for director before he arrived
The secretory had e-mailed the clients by the time she went out to have lunch
The hotel room was small stuffy and uncomfortable i had expected a bigger and more comfortable room
Our chairman had retired before i joined the compony in 2008