My friend Jack was very sick with a strange fever; _____, he could neither eat nor sleep.[ ]

The students found that all their homework was _____than they _____ before. [ ]

believe that the project, if _______ according to plan, will definitely work out well.

you get home at 5：30–Yes．I do．

How about her songs— Very well, and she can also dance. She is _______ asinger.