Answer:
How often do you review your lessons?
Explanation:
This is a question directed towards the other person. Therefore, "do you review" in the present tense is your best answer, as it is "up to the present point".
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1.have to
2.must
3.should
4.should
5.can
6.should
7.must
8.cant
9.shouldn’t
10.cant
11.can
12.have to
13.shouldn’t
14.must
15.should
Espero que te ayude !