The lecture begins at 9 tomorrow morning .So I have to be at the hall ____8:40 pm. at the latest. A until B after C by D around
The water ________ cool when I jumped into the pool for morning exercise.
—What's that noise? —Oh,I forgot to tell you.The new machine ________.
—Why does the lake smell terrible? —Because large quantities of water ________.
His sister left home in 1998,and ________ since.
In the near future,more advances in the robot technology ________ by scientists.(2011·湖南)