John is really expert at fighting cyber-crime!—Yes, but he _____ his potential if it had not been for his desire to meet the new challenge.[ ]

The Browns have six children altogether It is obviousthat ________ little money the present job brings Mr Brown can hardly supportso large ________family like that

Mr. Johnson, please give me a chance, I promise I’ll give you a wonderful surprise.

You should make it a rule to leave things _______ you can find them again.

He speaks English well indeed, but of course not ________ as a native speaker