research|researched|researching|researches

他花了数年时间研究一种稀有的非洲方言。

He ___researched a rare African dialect for several years.

她正在研究治疗疟疾的可能方法。

She's ___researching possible cures for malaria.

他在网上查询了航班和酒店信息。

He ___researched flights and hotels online.

他上网研究航班和酒店。

He went online to ___research flights and hotels.

医学研究挽救了许多生命。

Medical ___research has saved many lives.

他们正在对植物遗传学进行研究。

They are conducting ___research into plant genetics.

我喜欢做研究。

I like doing ___research.

我已经做了一些关于最佳海滩的研究。

I've done some ___research on the best beaches to visit.

我已经对最佳海滩进行了一些研究。

I've done some ___research into the best beaches to visit.

科学家们正在对语言发展进行研究。

Scientists are doing ___research into language development.

这位科学家研究气候变化对珊瑚礁的影响。

The scientist ___researches the effects of climate change on coral reefs.