--- Middle school students hardly know anything about shopping online, __________ they?--- ________. It’s very popular with teenagers.
—Helen, can I wear jeans and a T-shirt to the evening party?—OK. But a dress might be .
– I prefer _________shopping to _________at home.
—Have you found your lost mobile phone?—No, I haven’t. But I bought yesterday.
-What are you busy doing, Sandy?- I’m making some flash cards _________ me remember English words.
The socks cost _________ much _________we didn’t buy any.