People in the earthquake-stricken area were grateful for the _____ contribution which was offered by the people from all over the country.
27.I don't know_____________makes her afraid of having her business discussed.
28.Which sentence is wrong? 29.
33.I don't think_____________difficult for a Chinese student to master a foreign language within five years 34.
35..It's the second time you_________late this week. 36.
37.It will not be__________we meet again. 38.