ing ________space is exciting, yet dangerous. There is ________need for both robots and humans for space exploration.

Will you please fly a kite with me in the park this afternoon—_______. I will visit my grandparents in my hometown.

Hey, Eric! What has happened— The lift is broken again! You know, I live on the _________ floor.

― It’ a fine day. Shall we go jogging ― ______ But we need to be home before six.

The true traveler sets out to make an independent, unhurried journey to the unknown, travelling ______ few people have set foot.