In April, 2009, President Hu inspected the warships in Qingdao, ___________ the 60th anniversary of the founding the PLA Navy.
| A．marking | B．marked |
| C．having marked | D．being marked |
What __ public is concerned about is whether the scientists win be able to find _____ cram for the disease.
| A．the; a | B．the; / | C．/; a | D．/; the |
President Obama is letting Congress write the details of his plan for ________ he calls health insurance reform.
| A．as | B．what | C．that | D．all what |
Now everyone is concerned about how to conquer the economic crisis _______ is very important for us to be able to preserve our standard of living.
| A．which success | B．its success | C．the success of which | D．the success of it |
. --What made your father throw up last night?
-- I think the large quantities of wine _________.
| A．was | B．might | C．make | D．did |
As well as costing the Middle East dearly in terms of human life, conflict! (冲突) _______ the region around $ 12 trillion since 1991, according to a report by the Strategic Foresight Group.
| A．is also cost | B．had also cost | C．will also cost | D．has also cost |