工人们用水泥把瓷砖牢牢地固定在地面上。

The workers ___cement the tiles firmly to the ground.

这次成功的合作巩固了我们两家公司之间的信任关系。

The successful collaboration ___cemented the trust between our two companies.

工人用水泥填补了墙上的裂缝。

The workers ___cemented the cracks in the wall.