The tourists can not help wondering ______ the ancient people could manage to complete the magnificent building without modern equipment.
#79027
A
that
B
how
C
where
D
what
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Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.
#79301
A
what is called
B
which is called
C
what it is called
D
which it is called
At the science museum, the students from Sunshine Middle School got to know_______.
#37719
A
what does the spaceship look like
B
what the spaceship looks like
C
How the spaceship looks like
D
how does the spaceship look like