BY THE END OF THIS YEAR, JILL HERE FOR TWENTY MONTHS. A. IS WORKING...

Câu 13: By the end of this year, Jill here for twenty months. A. is working B. have worked C. will work D. will have worked Câu 14: All of the students are to pass the entrance examination in order to attend the uiversity. A. observed B. obsessed C. obliged D. obtained