题目

Ken_        his jacket in the gym. He has to get it back.     A. left          B. leaves           C. is leaving        D. was leaving 答案：【答案】A 【解析】考查时态的运用。根据句子语境“他不得不回去拿它”可知Ben过去把夹克衫忘了在体育场，此处应该用过去时态，故答案应选A。Some students have trouble         grammar while others have difficulty         new words． A. in；remember                                           B. for；to remember C. on；remembering                                     D. with；remembering