She says that she'll have to close the shop ________ business improves.
| A．if | B．unless | C．after | D．when |
29. _______ walk is expected to last all day, so bring ________ packed lunch.
| A．A, a | B．The, / | C．The, a | D．A, / |
28. Zhang Mingsheng, a farmer doctor of Nanping City, Fujian Province, _______murdered eight primary school students, was sentenced to death.
| A．that | B．who | C．which | D．where |
27. The town has a concert hall and two theatres. The _______ were both built in the 1950s.
| A．later | B．latter | C．last | D．list |
26. That warmhearted woman often helps ______ is in trouble.
| A．who | B．whom | C．whoever | D．whomever |
25. ---You ____ him more help, even though you were very busy.
---Well, now I regret not.
| A．might have given | B．may give |
| C．must have given | D．should give |