It was only after he had read the papers ________ Mr.Gross realized the task before him was extremely difficult to complete. (2013·大纲全国，30)
| A．when | B．that |
| C．which | D．what |
__________satisfies the teacher is the naughty boy is making progress in all his subjects．
| A．That; that | B．That; what | C．What; what | D．What; that |
October 1st in 2009 witnessed the grand National Day Military Parade, which has greatly
China's status in the world．
| A．enlarged | B．inspired | C．promoted | D．encouraged |
On receiving the admission letter from Harvard University,that he stood for quite a while speechless．
| A．Bruce was too excited | B．so excited was Bruce |
| C．so excited Bruce was | D．too excited was Bruce |
We writing a letter of complaint to the manager himself．But we'd like to hear your opinion first．
| A．have been thinking of | B．had thought of |
| C．were thinking of | D．thought of |
—How long do you suppose it is he arrived here?
—A week or so．
| A．when | B．before | C．after | D．since |