Thank you for all your hard work last week. I don’t think we ______ it without you.

—You___________ stop me. —Even if you __________it, I won't allow you to swim across the river.

.We were all waiting for you .You _____for the seaside by yourself without leaving a message.

----If a new difficulty ______, what would we do ?-----Don’t hesitate to turn to us .

 If penicillin had not been available, many people _____ from sickness or even small wounds.