wave|waved|waves|waving

无线电波用于长距离传输信号。

Radio ___waves are used to transmit signals over long distances.

人们认为来自手机的磁波可能带来健康风险。

It is thought that magnetic ___waves from mobile phones may pose health risks.

声波通过振动分子在空气中传播。

Sound ___waves travel through air by vibrating molecules.

旗帜在晨风中轻轻飘动。

The flags ___wave gently in the morning breeze.

那个孩子看到冰淇淋车时，兴奋地挥舞着双手。

The child ___waved her hands in excitement when she saw the ice cream van.

站在悬崖上，他可以看到长长的草在风中像绿色的海洋一样起伏波动。

Standing on the cliff, he could see the long grass ___wave in the wind like a green sea.

高高的麦子在风中轻轻摇曳。

The tall wheat ___waved gently in the wind.

兴奋的球迷们在整场比赛中挥舞着他们的旗帜和横幅。

The excited fans ___waved their flags and banners throughout the game.

我向他挥手，他也挥手回应。

I ___waved to him, and he waved back.

她向我挥手，我报以微笑。

She ___waved at me and I smiled back.

我从窗户向他挥手，但他没有注意到。

I ___waved at him from the window, but he didn't notice.

她向我挥手，我笑了。

She ___waved at me and I smiled.

她疯狂地挥手以引起我们的注意。

She ___waved her hands frantically to get our attention.

人群在空中挥舞着手臂，形成了一片动作的海洋。

The crowd ___waving their hands in the air created a sea of motion.