.If you _______wait a moment, I’ll go and find our manager.

----Have you known Professor Jackson in our department for a long time ? ----Yes, since he _____ the our university.

In the group discussion, they thought up three different __________to solving the environmental problem.

 — Is the man our sales-manager? — No, it ______ not be him   he never plays cards.

There were signs here and there, _____ visitors to look out for ______ rocks.