1. The main (2) ___________ ingredients of Pho are sliced chicken.

• The correct word is "primary" or "main". But since the word "main" is already used in the question, "primary" fits better.

Answer: primary

2. The delicious taste is always carefully selected and the spices are also carefully seasoned to suit the most discerning diners.

• For this part, you are likely looking for a word that describes the kind of diners. The phrase “discerning diners” refers to people with refined tastes.

Answer: discerning

3. Pho are noodles and broth with beef or thinly slices such as soy sauce, pepper, lemon, fish sauce, and does not use MSG to make the broth is mainly determined by spices.

• The word here should be something like "accompanied" because the broth and noodles are accompanied by other ingredients. Additionally, "slices" is a more appropriate word than "sliced."

Answer: accompanied

Final fill-ins would look like this:

• Primary ingredients of Pho
• Discerning diners
• Accompanied by slices of beef