In 1942,Columbus and his crew arrived ____was so-called the New World by the westerners.
| A．what | B．in what | C．where | D．in which |
The committee is discussing the problem right now. It will_____ have been solved by the end of next week.
| A．eagerly | B．hopefully |
| C．immediately | D．gradually |
一Have you handed in your schoolwork yet?
一Yes,I have.I guess it _____ now.
| A．has graded | B．is graded |
| C．is being graded | D．is grading |
Being a parent is not always easy, and being the parent of a child with special needs often carries with ___ extra stress.
| A．it | B．them | C．one | D．him |
____ twice, the postman refused to deliver our letters unless we changed our dog
| A．Being bitten | B．Bitten |
| C．Having bitten | D．To be bitten |
The biggest whale is ___ blue whale, which grows to be about 29 meters long-the height of ___ 9-story building.
| A． | the; the | B． | a; a | C． | a; the | D． | the; a |