“Isn’t it about time you _____ to do morning exercises?” “Yes, it is. Would you like to join us?” 
#90574
A
begin
B
have begun
C
began
D
had begun
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Had I hurried, I        the tram.
#87822
A
ould catch
B
ould catch
C
ould have caught
D
ad caught
I should not have laughed if I________you were serious.               
#86477
A
thought
B
would think
C
had thought
D
have thought