______ important for us ________English well.
#59423
A
It’s, to learn
B
This is, to learn
C
It’s, learning
D
This is, learning
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______ it is to learn English on the internet! 
#66256
A
What a fun
B
What fun
C
How a fun
D
How fun
________ it is to go for a picnic on such a fine day!
#66012
A
What a fun
B
What fun
C
How fun
D
How a fun