This machine is ______ easy to install and cheap to operate.
"easy" là tính từ, do vậy , cần một trạng từ đứng trước để bổ sung ý nghĩa cho tính từ này.
Đáp án là A. comparatively
Education in many countries is compulsory________the age of 16.
__________ John Kennedy was elected president, he was the youngest American President ever.
_______ has been a topic of continual geological research.
We must push the piano to the corner of the hall to_____________________ our party tonight.
Michael looked deeply hurt and surprised when_____________________ .
It is stated in the passage that____________________ .
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.
Long ago, women were_________to vote in political elections.
The boat was sailing north when a terrible storm_____________ .
There has been a great increase in retail sales,_____________________ ?