Please ask the salesgirl ____. 
#93582
A
how much did it cost
B
how much it costs
C
how much it costed
D
it cost how much
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— Mrs.Smith,please teach me how to draw on the computer today.—Oh,no. ____.You have to get familiar with the keyboard first.
#94646
A
It is never too old to learn
B
Think twice before you do
C
Learn to walk before you run
D
One today is worth two tomorrows
—Mary, the telephone is ringing!—______, but I am washing my hair. 
#94274
A
I’m sorry
B
You answer it
C
Hold on
D
That’s good