. Despite their quarrel, they _______ the best of friends.
| A．remained | B．are remaining | C．are remained | D．remaining |
“I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”
| A．must be | B．must have been |
| C．might be | D．can have been |
“I thought you wouldn’t mind.” “Well, as a matter of fact I don’t, but you _____ me first.”
| A．should ask | B．should have asked |
| C．must ask | D．must have asked |
—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the
job?
—____ my students have a try?
| A．Shall | B．Will | C．Could | D．Should |
If Sanlu Group __________melamine to the milk, the babies ________ too much from kidney stones.
| A．didn’t add; would not suffered | B．hadn’t added; wouldn’t have suffered |
| C．hasn’t added; wouldn’t have suffered | D．hadn’t added; would have suffered |
— Are you going to Lloyd’s birthday party on Friday?
— Only if it ______, he said he was having a picnic party.
| A．wouldn’t rain | B．doesn’t rain | C．won’t rain | D．hadn’t rained |