_______ that it was already the fourth time that he _______ abroad.

____, he does not know the answer.

—What are you anxious about?
—_______.

I don’t expect the children to be noisy, nor ________ them to be quiet.

Not until the press reported the pollution _________ why the water supply had been cut off.

____ in a branch of the tree ___ a note which read "I'll meet you at the School Gate"．

—Did you know any French before you arrived in Washington? —Never ___ it, actually．

–What’s troubling him? ______did Jim look quiet with his friends around.
--He’s considering a new project in his company.

______________ that my dearest friend would play a trick on me in front of all my students.

Only in Paris ______ a pair of shoes like that.