It was not until I visited Venice ______ it really worthy of the reputation of “the water world”.
The computer was used in teaching. As a result, not only, but students became more interested in the lessons.
The children all turned ____ the famous actress as she entered the classroom.
Edward, you play so well. But I ______ you played the piano.
She brought with her three friends, none of ______ I had ever met before.
I tried phoning her office, but I couldn’t _______.