how long (will they be)staying?为什么不是(they will be)

问题描述:

how long (will they be)staying?为什么不是(they will be)

这是疑问句。不要把陈述句中的从句(例:i am watching tv when they came.)跟疑问句语序混在一起

疑问语序

这是个简单句的问句, will提前
如果整个句子做宾语, 那就用whey will be
例如I don't know how long they will be staying