The reason__________ their failure you know is__________ they didn't get fully prepared for the experiment．
| A．why, that | B．that, why | C．for, that | D．why, because |
Much ________ my surprise, every student looked at me _________surprise when I came into the classroom
| A．in; to | B．to; by | C．to; in | D．in; in |
It was the third time that the boy _________ late. So his teacher got very angry.
| A．have been | B．was |
| C．had been | D．was being |
The two military exercises were similar __________ they were both intended to give a threat to a certain country.
| A．to what | B．for which |
| C．in that | D．except that |
_________ everyone can hear the speaker, there is no _________ in turning up the radio.
| A．Even if ; point | B．Now that; point |
| C．Now that ; need | D．Even if; need |
Many friends sent me e-mails to _________ me on the birth of my son.
| A．celebrate | B．reward |
| C．express | D．congratulate |