题目

 — John, there are only two students in the classroom. Where _____ the rest?    — I don’t know.    A. have been       B. has been          C. are              D. is 答案： C。the rest在句中指的是其余同学，表示复数概念，因此谓语用复数。Principal White has been working in the school for about 20 years,      all his energy to teaching and researching as well as the running of a healthy school．    A. devoted          B. devoting     C. to devote     D. and devote