Scarcely _____ raining _____ the PLA fighters started on their way again.

Never _____ forget the days when _____ together with you.

Only in the library _____ the book.

Only when ______ in 1918, ______ happily back to work.

 The boy would have died, _______ on him without delay.

.____, he does get annoyed with her sometimes. 

Not until he finished his homework          him to watch TV in the evening .

At last we came to a mountain, at the top of which ______,

Only through experiences of trial and suffering _____, and success achieved.

Only when class began ______that he had left his book at home．

Facts showed that only when they united ______ the strong enemies.

 _______, there would be no air around the earth.

 ______ seen such a magnificent city as Beijing.

The policeman told me that I had passed the driving test and never in my life _______ so happy and excited.

-- Tom works hard at English.?-- _____, and _____. 

They don't study in NO 1 middle school, ___ those boys.

Bill was staying on a farm with his uncle last summer. So ___ Mary.

Only after you have known someone for some time     producers his real worth.

Only when you slow down the speed ______ feel safer.

Rarely______others for help.