Frank read an interesting book about history.（一般疑问句）
( Did ) Frank ( read ) an interesting book about history?
主语是三单,READ 不变说明是一般过去时,故要加助动词did
Thomas didn't spend RMB 10 on this book.
一般过去时,要加助动词DIDN‘T,原来的动词要还原v,即 spent-> spend
I didn’t have any friends.（一般疑问句）
( Didn't you ) have ( any ) friends?
I don't think she is Lily’s sister.
对 I think 开头的否定句是否定主句,即否定前移.
Sally often does some reading in the morning.（否定句）
Sally (doesn't ) often (do ) some reading in the morning.
实义动词作谓语否定句要加助动词DOESN’T.原来的动词要还原,即DOES 要改为 do
祝你假期愉快!加油!不明白再问!