The girl is thinking about ( )she will go abroad to study En

B在所有这种带有question或doubt之类的句子中 只要是语义带有疑问的 都用whether 语义是肯定的就用that 如There's no doubt that he'll come tonight。（毫无疑问他今天晚上会来。） It's a question whether he'll come (or not)。（他来不来还是个问题呢。）(只有连接词用whether的时候才能加or not )