—I'm sorry to keep you waiting here so long.
—_______.
A. Don't do that again, please. B. Well, I'd love to wait.
C. You're welcome to say that. D. Oh, not at all.
Some people kill tigers and make medicine _______ their bones.
A. from B. of C. into D. out
Mother dogs have several babies _______.
A. on a time B. in a time C. at any time D. at a time
—Do you look forward to going to _______ North Africa?
—Yes, I do.
A. a B. an C. the D. /
Don’t walk _______ the rainforest alone. It’s dangerous.
A. across B. through C. from D. cross
If we keep _______the land, the farmers will have_______to live.
A. took; anywhere B. taking; nowhere
C. take; no place D. bring; somewhere
