I don’t remember who came first，but we all________the lecture

Where are you going this monthWe_________ go to Xiamen, but we’re not sure.

is no excuse, ________, for hurtingher feelings.

The number of the workers in this factory ________1,500. A number of them ______ from the countryside.

Though ________ in a big city Jim always prefers to paint the primitive(原始的)scenes of country life.