It was _____ he came bank from Africa that wear _________ he met the girl he would like to marry.

Not until______ the whole thing to him ______that he was wrong.

In ______, the only element that can be deleted or removed is the one that was inserted most recently.

Was it because he was ill _____ he asked for leave?

Protestors claimed it was wrong to fire Matthew Cusick merely because he was______.

Believe it or not, when first (introduce) ____ to Europe, tomato was thought to be poisonous.

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

Sandy could do nothing but _________ to his teacher that he was wrong.

It is generally considered unwise to give a child___( )_____ he or she wants.

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

It was ______ he came back from Africa that year ______ he met the girl he would like to marry.

By saying “While it’s true that ..., be they scientific or artistic” (Lines 1-3, Para.5), the author means that _____.