Tenses Worksheet For Class 10

Complete the given passage.

The Phoenix Mars Lander successfully ……………………… (touches / have touched / touched) down on the red planet on Sunday, May 25.  The mission, the first in Nasa’s Scout Programme, ………………………… (launched / was launched / has launched) in August 2007. Phoenix ……………………… (equipped / has equipped / is equipped) with some of the most sophisticated and advanced technology ever sent to Mars. It ……………………… (has / have / had) a robust robotic arm that can dig through the soil to the water ice layer underneath, and deliver soil and ice samples to the mission’s experiments. On the deck, miniature ovens and a mass spectrometer …………………………. (provide / will provide / would provide) chemical analysis of trace matter. There ……………………………. (is / are / have) also advanced Imaging systems that will provide an unprecedented view of Mars.

During the mission, Phoenix will try to find answers to the following questions: (1) did life ever ……………………… (exist / existed / had existed) on Mars? 2) can Mars support life, (2) what is the history of water at the landing site, and (3) how is the Martian climate ……………………. (affect / affected / effected) by polar dynamics? Time isn’t on Phoenix ’s side, though. Martian winter ……………………. (will / can / would) set in in just three months. And soon afterwards Phoenix ………………………….. (will / will be / would b) swallowed by over a meter of frozen carbon dioxide.

Answers

The Phoenix Mars Lander successfully touched down on the red planet on Sunday, May 25.  The mission, the first in Nasa’s Scout Programme, was launched in August 2007. Phoenix is equipped with some of the most sophisticated and advanced technology ever sent to Mars. It has a robust robotic arm that can dig through the soil to the water ice layer underneath, and deliver soil and ice samples to the mission’s experiments. On the deck, miniature ovens and a mass spectrometer will provide chemical analysis of trace matter. There are also advanced Imaging systems that will provide an unprecedented view of Mars.

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During the mission, Phoenix will try to find answers to the following questions: (1) did life ever exist on Mars? 2) can Mars support life, (2) what is the history of water at the landing site, and (3) how is the Martian climate affected by polar dynamics? Time isn’t on Phoenix ’s side, though. Martian winter will set in in just three months. And soon afterwards Phoenix will be swallowed by over a meter of frozen carbon dioxide.

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