Obama has been elected ___ first black president of the United States, and the international society expects to have ____ new USA under his leadership.
A 不填；the B a; the C. the ; a D the ; the
Though _____ in the accident, the bus driver did all he could to help the passengers to safety.
| A．injuring | B．injured | C．to injure | D．having injured |
—I can’t find my mobile phone anywhere.
—You _____ have lost it while eating out.
| A．may | B．need | C．would | D．should |
Students should be encouraged to take charge of their own learning, _____ just depending on their teachers.
| A．better than | B．more than | C．other than | D．rather than |
Because the manager had some important guests to meet, the meeting only _____ a few minutes.
| A．kept | B．continued | C．lasted | D．covered |
—Why were you so late this morning?
—I _____ in heavy traffic for an hour on the way here.
| A．have been caught | B．have caught | C．had caught | D．was caught |