191
2. No, he is too frightened
3. No, he is not well enough
4. Yes, they are strong enough
5. No, he is not strong enough
6. No, he is too slow
192
2 These buildings were designed by a famous architect
3 That picture was painted by Van Gogh
4 This form must be signed by three people
5 The exhibition will be opened by the Queen
6 The tree has been struck by lightning
7 This work must be completed today
8 The forest was destroyed by fire
9 Your English can be improved with more study
193
A skeleton was found in a cave....
It has been sent to a laboratory. It was being examined by scientists all through the night. It has been discovered that it is the skeleton.....
Tests are still being carried out. It is going to be sent to a museum when the tests have been completed.