Ⅰ.单句语法填空
1．We don't know whether she will come to our party.
2．The reason why he felt worried was that the final exam was coming.
3．It is developing at such a speed that no one can imagine what it will be like in the future.
4．The couple experienced damage to their properties while renting out their house.
5．Sharing encourages us to reuse items，thus cutting down on waste.
6．Many people are using technology to reduce the money that/which they spend on goods and services.
7．No doubt that the sharing economy is increasingly(increasing) relevant to daily lives.
8．The dogs were trained by their masters who/that had much experience with caring for animals.
9．Selfdriving is a new field where China and the rest of the world are on the same starting line.
10．Mary，whose sister I shared a room with at college，has gone to work in Germany.
