______ 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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 Please _________ because this is a reading room.  
#59430
A
quiet
B
to be quiet
C
to quiet
D
be quiet
______ left when you get to the end of the street. 
#66195
A
Keep
B
Keeping
C
To keep
D
Kept
_________________ and you will succeed in time, I dare say.
#66122
A
To make more efforts
B
Making more efforts
C
Make more efforts
D
Made more efforts
How pleasant the picture is to _________!
#65956
A
be looked at
B
being looked at
C
looking at
D
look at
______ it is to go for a hike in such lovely weather!
#65959
A
How fun
B
How funny
C
What fun
D
What a fun