A.when will the concert begin
B.when the concert will begin
C.when would the concert begin
D.when the concert would begin

A.Mary was sacked
B.Was Mary sacked
C.Why Mary was sacked
D.Why was Mary sacked

A.Peter will come
B.if Peter will come
C.that Peter will come
D.if will Peter come

A.be late for work three times
B.late for work three times
C.had been late for work three times
D.that he had been late for work three times

A.even if she cannot swim
B.as if that she cannot swim
C.that she cannot swim
D.if that she cannot swim

A.What did Billy
B.What Billy did
C.Billy did
D.Bill did what

A.\(\dfrac{{a\sqrt {35} }}{7}\)
B.\(\dfrac{{2a\sqrt {35} }}{7}\) 
C.\(\dfrac{{3a\sqrt {35} }}{7}\) 
D.\(\dfrac{{a\sqrt {35} }}{{14}}\)

A.\(65021\)
B.\(65024\) 
C.\(65022\) 
D.\(65023\)

A.\(124\) 
B.\(132\)  
C.\(136\)  
D.\(120\)

A.\(\dfrac{{{a^3}\sqrt {10} }}{2}\)
B.\(\dfrac{{{a^3}\sqrt {10} }}{6}\) 
C.\({a^3}\sqrt 5 \) 
D.\(\dfrac{{{a^3}\sqrt 5 }}{3}\)