no. 1-6 yang b. tolong ya...

1. Complains should be sent to the main office.
2. The meeting had to be postponed because of illness.
3. Your car might have been stolen if you left the keys in it.
4. The fire could have been caused by a short circuit.
5. Next year's convention is going to be held in San Fransisco.
6. The soccer match shouldn't have been played in such bad weather.