綠星製皂。任風雨飄搖一生不懼

一直知道這個字超重要，但是從來沒有用過它

剛剛上網查了一下用法

A. whether = 是否，[ whether ]與[ if ]可相互代替使用

1.   Myra was not sure whether Tony could come to see her.

      = Myra was not sure if Tony could come to see her.

2.   We have no idea whether tomorrow will be a fine day.

      = We have no idea if tomorrow will be a fine day.

3.   My mom asked me whether I finished my homework.

      = My mom asked me if I finished my homework.

4.   I wondered whether I could go on vacation with my mom.

      = I wondered if I could go on vacation with my mom.

5.   Our music teacher doubted whether Warren was interested in music.

      = Our music teacher doubted if Warren was interested in music.

B. whether A or B = 不論是A或B, 如果 B = not A, or B 可省略

 若沒有用[ or not ]，只用[ or ]，在[ or ]前面[ whether ]或[ if ]都可以使用

1.   Howard was quite sure whether he wanted to go to college or find a job first.

      = Howard was quite sure if he wanted to go to college or find a job first.

2.   My cousin doesn’t want to tell me whether he will go to Taichung this week or fly to Kaohsiung next week.

      = My cousin doesn’t want to tell me if he will go to Taichung this week or fly to Kaohsiung next week.

3.   Angela’s parents are not quite certain whether she will marry Karl or go abroad to study.