1. As the professor was speaking too fast, I couldn’t understand everything.
If the professor..............................................................................................................
2. Our crops couldn’t grow if we didn’t have more rain.
Unless ........................................................................................................................
3. He doesn’t practise speaking French, so he doesn’t speak it fluently.
Were ..........................................................................................................
4. The meeting can be cancelled because it snows heavily.
Were .....................................................................................................
5. My brother didn't leave the car keys, so I couldn't pick him up at the station.
Had ................................................................................................
1. As the professor was speaking too fast, I couldn’t understand everything.
If the professor...................hadn't spoken too fast, I could have understood everything...........................................................................................
2. Our crops couldn’t grow if we didn’t have more rain.
Unless .................................................. we had more rain, our crops couldn't grow.......................................................................
3. He doesn’t practise speaking French, so he doesn’t speak it fluently.
Were ................................he to practise speaking French, he would speak it fluently...........................................................................
4. The meeting can be cancelled because it snows heavily.
Were ............................................it not to snow heavily, the meeting couldn't be cancelled.........................................................
5. My brother didn't leave the car keys, so I couldn't pick him up at the station.
Had ...................................... my brother left the car keys, I could have picked him up at the station...........................................................
