—Who called just now, Sam?—It’s Mona. She asked _____.
In our class, about ______ of the students are girls.A. three fifths B. third fifth C. third fifths
One-child policy has ______ controlling China’s population.A. did well in B. worked well in. C. worked good in
Mrs. White isn’t here. She ______ London. A. has been to B. has gone to C. went to
--Do you often read English magazines? -- No, because I find the words _____the magazines too hard ____ me to understand.
Please ___ the computer with a piece of cloth , or it will get dirty