Sending Mackerel to Sapce Part 2

( ) the requirements　

必要条件を満たす

How many main difficulties in making the canned mackerel?

Q: What was the first difficulty?

A: It was ( )

(a)  

Why did they make a sticky sauce?

( ) should not float around in the space station.

(a)  

What was the students' idea to make a sauce sticky?

They added ( ) to the sauce.

(a)  

Q: What was the second difficulty?

A: It was ( ).

(a)  

When you go to sapce, what may your sense of taste become?

It may become ( ).

Space food should be a ( ) flavor.

(a)  

Why should the space food be storong flavor?

When you go to space, your sense of taste may become ( ).

(a)  

How did the students find the best level of flavor for space food?

They made ( ) with different amounts of soy sauce and sugar?

(a)