_____ all over the hills and around the lake are wild flowers of different colors．
| A．Grow | B．To grow | C．Growing | D．Grown |
It’s a pity that you ______ leave so soon. Your uncle will be home in 10 minutes and he misses you so much.
| A．should | B．could | C．can | D．might |
Don’t be afraid of difficulties. They can help you______ experience, and experience can, in return, broaden your horizons.
| A．accompany | B．accumulate | C．abandon | D．acknowledge |
The research report published last month is very important______ it confirms the link between aggression and alcohol.
| A．as long as | B．in case | C．in that | D．even though |
China now aims to boost domestic demand, and this ______ would help the global economy.
| A．in short | B．on duty | C．on average | D．in turn |
I ______ the TV series The Legend of Zhenhuan when my mom made a phone call to me.
| A．am watching | B．watching | C．was watching | D．was watched |