Will you drop in at my house this afternoon if _________?
| A．it is convenient to you | B．you are convenient |
| C．it is convenient of you | D．you will be convenient |
—Can those________at the back of the classroom hear me?
—No problem.
| A．seat | B．sit |
| C．seated | D．sat |
―Why? Where is my cellphone?
―Dear me! You _______ it in the taxi！
| A．have never left | B．never left |
| C．haven’t left | D．didn’t leave |
You need some facts _____ to base your theory.
| A．where | B．on which |
| C．in place where | D．in the place |
________ for not keeping his promise，Gary hung his head in shame.
| A．Blamed | B．To be blamed | C．Blaming | D．To blame |
BP announced Thursday that oil has stopped leaking into the Gulf of Mexico ,________ a few Americans think is untrue.
| A．where | B．what | C．which | D．that |