— I’m very busy now. Could I call you back after work? — OK. I’ll wait for you.
______ Chemistry is a branch of Chemistry.
Every means ______ tried but without any result.
—My daughter lived in France for five years and now she's working in a foreign company.—______is no wonder that she speaks such excellent French.
The boy said sadly,“No one can tell ______ will happen next.”
With a nod of his head,he ______ me where I should sit.