Miss Liu can sing a lot of English songs and she can sing them ___ .
Tom was seen in the street at 7:00 this morning and l told him .
Audrey won an Oscar ________ Best Actress ______her role in the film Roman Holiday.
—I visited a paper factory last Sunday. —_________.
—Look! That man looks like Mr. Brown. —It _______be him, for he _______to America.
—_____ heavy snow! How can we go to work today? —_____ it is snowing heavily, let’s walk instead of driving.