It is only by practising English for several hours every day _________ be able to use it freely.
----I think you look nice in the red dress.----____.
____ caused the accident is still a complete mystery.
We made use of every minute ______ for the coming examination.
Mr Bush is on time for everything. How____ it be that he was late for the opening ceremony?.
The news of his mother’s death was____ terrible shock to him.