1) ........................your homework yet?
a) Are you doing
b) Have you done
c)Do you do
2)yes,i ........... it already
a) am doing
b)have done
c) do
3) Dickens ...................... a lot of  novels
a) has written
b)writes
c)wrote
4) Her mother ........................ three books.She is going to start the fourth one soon
a)Has written
b)Writes
c) wrote
5) I think i ............ him before
a) meet
b) met
c) have met
6) oh,yes! Now i remember. I .......................... him when i was in Hoi An.He was our guide
a) meet
b) met
c) have met