49. 【2020 •黔西南州中考】Lisa is studying abroad. She hasn’t decided ________ back to China because of the COVID-19.
A. if she flies B. whether she will fly
C. when will she fly D. how will she fly
【答案】B
【解析】句意：丽莎正在国外学习。她还没有决定是否会因为COVID-19乘飞机飞回中国。考查宾语从句。宾语从句应用陈述句语序，故C、D选项可排除。根据上一句Lisa is studying abroad可知，丽莎还没有决定是否会因为COVID-19乘飞机飞回中国，还未发生的动作应用一般将来时，故选B。