Even if the treatment ________, there is still no magic pill for the patients in the last stage of AIDs.
| A．works | B．uses | C．does | D．helps |
Remember to send me a photo of us next time you ______ to me.
| A．are writing | B．will write |
| C．has written | D．write |
--- I ______ so busily recently that I ______ no time to help you with your math.
--- That’s OK. I can manage it by myself.
| A．have been working; have |
| B．have worked; had |
| C．am working; will have |
| D．had been working; had had |
--- Oh, dear. I forgot the air tickets.
--- You ______ something.
| A．have left | B．are always leaving |
| C．are leaving | D．always left |
I don’t understand how you got a ticket. I always _____ you _____ a careful driver.
| A．think;are | B．am thinking, are | C．thought, were | D．think, were |
US president George Bush ____ the war in Iraq on March 20,2003. But internationally, the US war in Iraq _____ as one country misusing its power over a weaker nation.
| A．started, has been criticized | B．has started, had been criticized |
| C．started, has criticized | D．had started, was criticized |