1. It me two hours to get to the airport. (Correct)(Incorrect)
It took me two hours to get to the airport. (Correct)
2. Their car was stolen while they lunch at a cafe. (Correct)(Incorrect)
Their car was stolen while they were eating lunch at a cafe. (Correct)
3. My grandmother fairy tales to me when I was a child. (Correct)(Incorrect)
My grandmother read fairy tales to me when I was a child. (Correct)
4. When he lived in Mexico, he in a bank. (Correct)(Incorrect)
When he lived in Mexico, he worked in a bank. (Correct)
5. He for his bus at the bus stop when the robbers attacked him. (Correct)(Incorrect)
He was waiting for his bus at the bus stop when the robbers attacked him. (Correct)
6. She all the letters by the time her boss asked her to type them again. (Correct)(Incorrect)
She had sent all the letters by the time her boss asked her to type them again. (Correct)
7. Until last night, she him about it. (Correct)(Incorrect)
Until last night, she had never asked him about it. (Correct)
8. He for twenty years when he finally quit smoking. (Correct)(Incorrect)
He had been smoking for twenty years when he finally quit smoking. (Correct)
9. Yesterday I went to an interesting museum that I before. (Correct)(Incorrect)
Yesterday I went to an interesting museum that I hadn't visited before. (Correct)
10. By the time we arrived, she for us at the train station for three hours. (Correct)(Incorrect)
By the time we arrived, she had been waiting for us at the train station for three hours. (Correct)