耽美小说推荐仙侠:In the experiment we kept a watchful eye ___ the developments and recorded every detail.
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A. in B. at C. for D. on
请问是哪个介词?
请问是哪个介词?
D
keep an eye on ..............
固定phrase
In the experiment we kept a watchful eye ___ the developments and recorded every detail.
(1).......in an experiment,they didn't notice me entering the room.( )
We usually talk quietly in the library.
we are season in the sun 是什么意思
We bought fruit in the ______
We were deeply__ __ the dolphin show in the zoo.
We'll have the discussion in the garden____the hall.
5We ___each other the best luck in the examination.
we should keep quiet in the l__when we read books in it
We should keep quiet in the l____ when we read books in it.