Rainfall is the main _____ of water supply in that area.
Rainfall is the main \_\_\_\__ of water supply in that area.
那个
The pot _____ for _____ hot water.
The pot \_\_\_\__ for \_\_\_\__ hot water.
—What do you think of the TV play?—Wonderful. It is worth _____ a second time.
—What do you think of the TV play?—Wonderful. It is worth \_\_\_\__ a second time.
A photo _____ each time that button _____.
A photo \_\_\_\__ each time that button \_\_\_\__.
我国实行宗教信仰自由政策。下列选项中不属于宗教信仰自由政策的是（ ）。
我国实行宗教信仰自由政策。下列选项中不属于宗教信仰自由政策的是（ ）。