1. She was telling such a funny joke, but he managed to keep a straight face.
Dia menceritakan lelucon yang sangat lucu, tapi dia berhasil tetap menahan ekspresi serius.

2. Despite the ridiculous situation, the actor did a great job of keeping a straight face during the scene.
Meskipun situasi yang konyol, aktor itu berhasil menahan ekspresi serius selama adegan.

3. The teacher had a hard time keeping a straight face when the student gave a ridiculous excuse for not doing his homework.
Guru itu kesulitan menahan ekspresi serius ketika murid memberikan alasan konyol karena tidak mengerjakan PR.

4. It was difficult to keep a straight face when my friend slipped on a banana peel in front of everyone.
Sulit untuk menahan ekspresi serius ketika temanku tergelincir di depan semua orang.

5. The comedian was known for his ability to make people laugh while keeping a straight face himself.
Pelawak itu dikenal karena kemampuannya membuat orang tertawa sambil tetap menahan ekspresi serius.

6. Even though the news was shocking, she tried her best to keep a straight face in front of her colleagues.
Meskipun berita itu mengejutkan, dia mencoba sebaik mungkin untuk tetap menahan ekspresi serius di depan rekan kerjanya.