( )Even the top students in our class can't work out this problem. So it _____ be very difficult.
We must keep our bodies ______.A. heath B. healthy C. healthily
Is there _____ in today’s newspaper?A. something importantB. anything important C. important anything
I saw a boy _____ away when I passed the park. A. run B. ran C. for
_____ he ______ tennis after classes yesterday?A. Did; played B. Did; play C. Does; play
What _____ you _____ last weekend?A. did; do B. did; did C. do; does