The retired man donated most of his savings to the school damaged by the earthquake in Yushu ,________the students to return to their classrooms.
| A．enabling | B．having enabled | C．to enable | D．to have enabled |
If _______, I bet, Milinski will burst into tears.
| A．praising | B．praised | C．being praised | D．having praised |
He was quick and smart, and his brother ______ silly and clumsy.
| A．as well | B．as long | C．as much | D．as many |
I wonder _______ there are so many natural disasters across the world in 2010.
| A．why is it | B．it is why that | C．why is it that | D．why it is that |
Into the dark apartment _______, who was quite surprised when everyone shouted “Happy Birthday”.
| A．did David walk | B．David walked | C．David did walk | D．walked David |
Sorry I’m so late, but you cannot imagine _______ great trouble I took to find your house.
| A．what | B．how | C．which | D．why |