.If the launch is successful this year,China will be the third country_________its astronauts into space.
He has changed a lot. He _______ not what he _______.
“When did he leave the classroom?” “He left _______ you turned back to write on the blackboard.”
“Shall Mary come and play computer games?” “No, _______ she has finished her homework.”
The man you referred to _____ just now.
We decided not to climb the mountains because it was raining ________.