$\text{1. It is not worth trying and explaining anything to Tony}$
$\text{2. It will take us at least 30 minutes to get to the airport}$
$\text{3. I didn't have any difficulty in translating this passage}$
$\text{4. She suggested me that I should take a rest}$
5. Many houses have to be rebuilt because of the earth-quake
$\text{6. The heavy rain prevented us from getting to work}$
