—Look! The lights in the classroom are still on.
—Oh, I forgot ________.
A. turning them off B. turn them off
C. to turn them off D. having turned them off
She found ___ hard to finish the work by herself.
A. that B. it’s C. it D. this
Good learners aren’t afraid _______mistakes. Instead, they learn ________mistakes.
A. of making, from B. of make, from
C. to make, in D. to making, in
My parents want to go ____ on vacation.
A. somewhere peaceful B. dangerous somewhere
C. somewhere boring D. fascinating somewhere
Why not consider _________ Kunming next holiday?
A. visit B. visited C. visiting D. visits
Few of them hurt themselves in the accident last night , __________？
A. don’t they B. didn’t they
C. did they D. do they
