Exercise 8. Choose the best answer to complete each of the following sentences. 1. The house ................ is more than 100 years old. a. where I live b. in where I live c. in that I live d. where I live in 2. The botanists are examining the plants, ................ were brought from Africa. A. who B. whom C. which D. that 3. Do you know the hotel ............ ? A. at which she is staying B. where she is staying C. she is staying at D. all are correct 4. That is the new teacher about .............. the student are talking. A. that B. who C. whose D. whom 5. This subject, .............. going to discuss , is very important. A. which we are B. which are we C. that we are D. a and c are correct 6. The scientist .............. invention was a success became famous. A. who B. whose C. which D. that 7. I knew some people .............. A. who could help you B. whom could help you C. whose help could you D. could help you 8. That is the dress ............. . A. which made by Mary B. which making by Mary C. was made by Mary D. made by Mary 9. The bicycle ............... is very modern. A. I told you about which B. which about I told you C. about I told you which D. about which I told you 10. Many diseases ................ are no longer dangerous today. A. why people died of year ago B. which people died years ago C. of that people died years ago D. that people died of years ago giúp mình vs ạ