74. According to the passage, NASA will launch a satellite to _________. (A)take images of the solar system (B) provide early warning of thunderstorms (C) keep track of solar activities (D)improve the communications on Earth

25.II. Grammar and Vocabulary Section A Directions: (B)neath each of the following sentences there are four choices marked ABCand DCoose the one answer that best completes the sentence. Sean has formed the habit of jogging the tree-lined avenue for two hours every day. (A)between (B) along (C) below (D)with

74. According to the passage, NASA will launch a satellite to _________.
(A)take images of the solar system
(B) provide early warning of thunderstorms
(C) keep track of solar activities
(D)improve the communications on Earth

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