----Look! Where are you going? ---Sorry. I _______________.
A. wasn’t noticing B. am not noticing. C. don’t notice. D. haven’t noticed
________ was most important to her was her family.
A. What B. Which C. As D. It
All of us found ______ difficult to work out the maths problem.
A. what B. that C. which D. it
By the time these books were published, he _____ addicted to them.
A．had become B. becomes C. has become D.became
I'm fine — I just felt a bit sleepy and tired, that was ________ I went to bed so early."
A. because B. when C. that D. why
—why, Jack, you look so tired!
—Well, I _____the house and I must finish the work tomorrow.
A. was painting B. will be painting C. have painted D. have been painting
