Nhận biết (M1)

Stargazers who looked up at the right time (and with the right protective equipment) on October 21, 1930, were able to enjoy the beautiful totality of a total solar eclipse. __________ . Spectators had just one minute, fifty-five seconds to watch the dramatic moment when the moon almost entirely blocks the sun.

Which choice completes the text with the most logical transition?

• A.

  However, this wasn't all they saw.

• B.

  The phenomenon was brief, though.

• C.

  Eventually, the event concluded as expected.

• D.

  In fact, such phenomena are fairly common.