People are advised not to drive after drinking, but _____ seemed not to help a lot. [ ]

What’s the matter with Betty She likes the book, but she will not buy it.— Betty saves her money _____ buy her mother a present on Mother’s Day.

________ there any bottles of milk in the fridge— No, there ________.

n environment can help the city bid for the Olympics, which____ will promote its economic development.

It was in the lab _____ was taken charge by Professor Wang ______ they did the experiment.