问题

Did you open the door? —–Yes. I remembered _____it before you arrived.

A:opening
B:being opened
C:to open
D:to have opened

正确答案是：

同类题型

Three years ago，a society was set up to________the endangered animal and plant life from dying out in this area

Finally, the two girls got to the top of the mountain, ________. [ ]

下列各句中，没有语病的一句是

Eight children were killed and five were wounded ______ the second knife attack that happened in Fujian Province on March 23,2010[ ]

Can you give me _______ minutes