—Will you please go to see the movie Guanyinshan with me? —No, I won't. I ______ already. [ ]
A.
saw
B.
have seen
C.
see
D.
will see
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举一反三
【简答题】Newton's second law says: the acceleration of an object is directly proportional to the net force acting on it and is inversely proportional to its ________. (one word)
【判断题】Newton's Second Law in angular form is that the net torque applied on a particle is the reason for changing angular momentum l of the particle, and is given by .