_____the climate changes so much has caused many discussions among the scientists.

You have to drink more hot water _________ you have acold—Thanks, I will.

Excuse me, may I use your car?— I’m sorry.I’m afraid I can’t ________ the car key just at the moment.[ ]

The soldiers are afraid that they will soon __________ oil and food if they are still surrounded.

leaving for the States tomorrow for aholiday, Caroline!—