单项选择题
A．They were killed in the explosion B．They survived but were badly burned C．They died shortly after reaching the beach D．They were blown off the ship and swam ashore
A．she was struck by lightning B．two seamen were working C．she was unloading her oil D．the fog began to clear up
A．he was doing some physical exercise B．that was the best way to keep balance C．the deck was uncomfortable to stand on D．he wanted to attract the watchers' attention