I'm going to visit my grandparents ______________.A. on Saturdays B. this weekend C. last weekend
I really don't know________.A.what to do it B.where to do C.what to do
He's busy________ English.A.learn B.learning C.to learn
Why________read books?A.not to B.don't C.not
Teachers taught us________many ways.A.in B.at C.from
Her studies in Middle School________coming to an end. A.am B.is C.are