There was a long queue for coffee Having waited for 10 minutes, we _______ gave up

Alice likes doing housework. She ________her room every afternoon.

Was it in 1969 ____ the American astronaut succeeded____ landing on the moon

____ most efficient way to understand thousands of newwords is to gain ____ good knowledge of basic word information.

Wind power is an ancient source of energy ____ we may retum in the near future.[ ]