... 3500 CÂU HỎI TRẮC NGHIỆM TIẾNG ANH -1 (50-100) 51. We are both doctors. a. the b. a c. an d. no article → d 52. This is ... thanks. a. eleven b. big c. well d. sad → c 76. My father is a doctor. Lan's father is a doctor, too. They are doctors. a. not b. both c. or d. and → b 77. Oh, look at that cat....