很抱歉，因为月考即将到来，上周日我没能参加你的生日聚会，和你一起庆祝这个珍贵的时刻。

I am very sorry that I didn't attend your birthday party and celebrate the precious moment with you last Sunday because the monthly test was round the corner.

youdao

因为我没有生日蛋糕。

I'm not happy, because I have no birthday cake.

youdao

一年多前我买了这台电视机，因为过生日时，亲戚给了我一些钱。

I was able to buy the television a little over a year ago because I had my relatives give me some money for my birthday.

youdao