Exercise 1: Chọn đáp án đúng nhất để điền vào chỗ trống ở mỗi câu sau đây. 1. Each student. answered the first three questions. a. has b. have c. have to d. must 2. Either John or his wife breakfast each morning. a. make b. is making c. makes d. made 3. Everybody who . a fever must go home at once. a. has b. have c. is having d. are having 4. Five dollars all I have on me. a. are b. is c. will be d. have 5. John, along with twenty friends, . planning a party. a. are b. is c. has been d. have been 6. Mathematics.. the science of quantity. a. was b. are c. is d. were 7. Measlescured without much difficulty nowadays. a. is b. are c. will be d. have 8. Neither Mary nor her brothersa consent form for tomorrows field trip. a. need b. needs c. is needing d. has need 9. Peter, together with his uncle, fishing. a. have gone b. has gone c. go d. goes 10. The army. eliminated this section of the training test. a. has b. is having c. are d. have