We can see a lot of people doing morning exercises in the park even_____a cold morning.
考查词语搭配。意为“甚至在寒冷的早晨,我们也可以看到很多人在公园里晨练”。on a...morning“在一个……的早晨”,morning前有修饰词时必须用on;B in和morning搭配时,只构成in the moming结构;at指具体的时刻,during指时间段,此处不适用。
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
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