A scientist who studies living things is a ______.
Chủ ngữ chỉ người "a scientist", do vậy, từ sau tobe và mạo từ "a" cũng phải là danh từ chỉ người.
Đáp án đúng là A: biologist = nhà sinh học
There has been a great increase in retail sales,_____________________ ?
Only one of our gifted students______to participate in the final competition.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
He_______________us but he was short of money at the time.
She asked me______I was looking at.
______ his brother, Mike is active and friendly.
We all agree that she is____________________ student in our class.
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "
Education in many countries is compulsory________the age of 16.