It was in 1969 ___ the Americanastronauts first succeeded in landing on the moon

It is required by the authorities of school that students should be treated ______ by their teachers but how can a teacher respect them when the students show no respect for him?[ ]

Remember this, John. ________ you work, ______grades you’ll get.–Thanks, Miss Rose.

undred of the tourists were savedfrom danger in Taiwan, but the rest ______ still missing．— If only the travel agency ________ moremeasures to prevent such accidents．

＿＿＿＿you ＿＿＿＿ the editor at the airport?—— No, he ＿＿＿＿ away before my arrival