Complete the following :
1. Two ……… astronauts landed on the moon on July 20, 1969.
2. The …….. sent its astronauts and the ……… sent its spaceships for the exploration of the moon.
3. The ……………… felt it unnecessary to land a man on the moon.
4. There is no ………………. on the moon.
5. The information gathered about the moon has proved the traditional beliefs
6. In the glare of the sun, lunar rocks reach a temperature of ………….
