giúp mình ạ Some time ago, scientists began experiments to find out (1)______ it would be possible to set up a “village” under the sea. A special room was built and lowered (2)______ the water of Port Sudan in the Red Sea. For 29 days, five men lived (3)______ a depth of 40 feet. At a (4)______ lower level, another two divers stayed for a week in a smaller “house”. On returning to the surface, the men said that they had experienced no difficulty in breathing and had (5)______ many interesting scientific observations. The captain of the party, Commander Cousteau, spoke of the possibility of (6)______the seabed. 1:A. what B. which C. how D. whether 2:A. down B. into C. below D. underneath 3:A. at B. in C. on D. from 4:A. some B. more C. any D. much 5:A. exercised B. made C. caught D. done 6:A. cultivating B. transplanting C. implanting D. growing