防伪合格证标签:On weekends,I spend time with my family.

On weekends,I spend time with my family. I spend(spend) lots of time on my work last week.为什么填spend. I have no money to spend on ? you have nothing to spend on. ?处填though 还是 while on weekends与 on the weekend They usually ( ) ( have) on classes on weekends what does she do on weekends weekends spend on 与 spend in有什么区别? Do you usually go（） (dance)on weekends? spend on与 pay for 的区别