—I didn't go to see the doctor yesterday.
—But you ________.
| A．ought | B．ought to |
| C．ought to be | D．ought to have |
________from space, the earth, with water_____seventy percent of its percentage, looks like a “blue ball.”
| A．Seen; covered | B．Seeing; covering | C．Seeing; covered | D．Seen; covering |
_________to train his daughter in computer, he put an ad like this in the paper, “_________, a computer teacher for a ten-year-old girl.”
| A．Determined; Wanted | B．Determined; Wanting |
| C．Determines; Wanted | D．Determining; Wanting |
He will stop showing off, if no notice_____of him.
| A．is taken | B．will be taken | C．takes | D．has taken |
---Why is he unhappy?
---He has a case_______he is being accused of stealing.
| A．when | B．where | C．there | D．which |
They had no sooner arrived at the bus station than the bus .
| A．had left | B．will leave | C．left | D．is leaving |