Choose the letter A, B, C or D to complete the sentences with given words

Choose the letter A, B, C or D to complete the sentences with given words.
1. It’s/ fantastic/ spend/ a day/ New York
A. It’s fantastic to spend a day in New York.
B. It’s fantastic spending a day in New York.
C. It’s fantastic to spend a day at New York.
D. It’s fantastic spending a day at New York
2. She/ be/ to Dubai/ three times/ year.
A. She is to Dubai three times this year
B. She is to Dubai three times year
C. She has been to Dubai three times year.
D. She has been to Dubai three times this year.
3. Tokyo/ most populous/ capital/ city/ world.
A. Tokyo is the most populous capital city in the world.
B. Tokyo is most populous capital city in the world.
C. Tokyo are the most populous capital city in the world.
D. Tokyo are most populous capital city in the world.