The clever boy made a hole in the wall, _____ he could see _____ was going on inside the house.
#69155
A
which;what
B
throughwhich;what
C
throughthat;what
D
what;that
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They have no idea at all ____.
#72409
A
what he is working on
B
what is he working on
C
what did he work on
D
what he is working
These shoes look very good. I wonder __________. 
#73894
A
how much cost they are
B
how much do they cost
C
how much they cost
D
how much are they cost