Now most families have only one child _____ our country’s one-child policy.
A year has four seasons and it________twelve different star signs.
Battery-operated slippers are used________seeing in the dark.
The children________not to play with fire.
The Northern Tower of Xin Hua has a long history.It________in 1835.A.is builtB.was builtC.was building
The meeting________tomorrow is very important.You can’t miss it.