"We can't go out in this weather," said Bob, ________ out of the window.
A. looking B. to look C. looked D. having looked
Scientists are convinced _______the positive effect of laughter ______ physical and mental health.
A. of ; at B. by ; in C. of ; on D. on ; at
Many of them turned a deaf ear to his advice, ________ they knew it to be valuable.
A. as if B. now that C. even though D. so that
It is so difficult a question_______ none of the kids could work it out.
A. as B. that C. which D. X
Kunming is called “Spring City”, but it _____ snow in winter.
A. shall B. can C. must D. might
The old black woman sat under the pine tree, her grandsons, ______ around her, ______ to an old story.
A. seating; listening B. seated; listened C. seating; listened D. seated; listening
