For each question, complete the second sentence so that it means

For each question, complete the second sentence so that it means the same as the first. Use no more than three words. 1 Scientists once believed that Mars had canals. Scientists once believed that there ................................. canals on Mars. 2 Before his accident Vincent was a careless driver. Vincent was a careless driver before he .................................. accident. 3 It was the first time shed seen a tsunami. She ...................................... a tsunami before. 4 The spaceship had no power for two hours. The spaceship ...................... without power for two hours. 5 I havent had an accident for two years. The last time ............................ an accident was two years ago.