She is said _____in the United States for four years before she came back to work in our company.
| A．to study | B．to be studying |
| C．to have studied | D．studying |
Though _____ with different medicines, the patient hasn’t recovered from the mysterious
illness yet.
| A．to treat | B．treated | C．treating | D．being treated |
You may use my PSP _____ you return it before next Tuesday.
| A．as long as | B．although | C．in case | D．unless |
A fire broke out in the building at about 7:30 on Tuesday morning, _____ in the death of a
young girl.
| A．having resulted | B．resulted | C．being resulted | D．resulting |
I don’t imagine Russ and his poor dog had a good time on the deserted island, _____?
| A．didn’t they | B．do I | C．did they | D．hadn’t they |
– I’m told that you are leaving for Beijing. – Who _____ so?
| A．said | B．had said | C．says | D．say |