2. You can _______ (ALTERABLE) the color and size of the image using a remote control.

4. Andy, ____________ the only hope was to escape, had been digging the tunnel for more than 20 years of his imprisonment with the help of a small rock ax.

9. Her mother will _____________ (PRESUME) stay with them until she’s made a full recovery. This is the most likely situation, I think.

15. Her _______________ (DENY) of responsibility for the accident was unconvincing. She said it was not true that she caused the car crash but nobody seemed to believe her.

The day ______________ I'm forced to give up riding will be a sad day for me.

John________I am very proud is a colleague of mine.

Does he know the girl __________ John is talking?

12. The ___________________ (MODERNIZE) of the 100-year-old sewage and water systems will cost millions of pounds.

The jungle___________ the tribe lived was full of strange and unusual animals.

3. They have ______________ (PERSISTENCE) ignored our advice. I really don’t understand why they have continued to do so for so long.

8. In theory, most phone calls should be __________(TRACE). However, in practice, it’s not possible to keep track of some of them.

An Austrian naturalist, _____________ I worked closely in the Eighties, discovered this particular orchid.

The person __________ he is negotiating is the Chairman of a large company.