Topics: Present Perfect: for/since
It looks like you ____ (not/clean) this kitchen ____ several weeks.
A. have not clean/ since
B. hasn`t cleaned/ for
C. haven`t cleaned/ for
D. have not clean/ since
Select your answer:

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Some vs. Any › ViewAre the computers free? – Yes, you can use ….. one you like.
a. some
b. any
Present and Past Perfect Tenses › View
I ____ the movie before you mentioned it to me.
A. had seen
B. has seen
C. had saw
D. have seen
