用a few momths ago作时间状语改写： 将改写的句子变否定句： 变一般问句： 肯定,否定回答： 急啊!

用a few months ago作时间状语改写：They were in Canada a few months ago。将改写的句子变否定句：They weren't in Canada a few months ago。变一般问句：Were they in Canada a few months ago?肯定,否定回答：Yes,they were。No,they weren't。