15.（ ）

(单选题)The US troops ______ out of Afghanistan by the end of this y (单选题)—I don’t think teachers should give too much homework to ___ (单选题)—Do you have Betty’s phone number?—Yes. Otherwise, I ______ (单选题)Some of you may have finished unit one. ______, you can go o (单选题)No sooner ______ than a little boy rushed out of the classro (单选题)They gave money to the old people’s home either ______ or th (单选题)______, I have to put it away and focus my attention on stud (单选题)The newcomer went to the library the other day and searched (单选题)It was in the cafe ______ she met John yesterday ______ she (单选题)During the Mid-Autumn Festival, family members often gather