After many failures the most difficult ______ is how to keep our strength up and fight again.
| A．chance | B．change | C．challenge | D．challenger |
A new situation is likely to ___________when the school leaving age is raised to 16.
| A．arouse | B．rise | C．arise | D．lift |
Last summer I took a course on___________poisonous gases.
| A．how to deal with | B．what to deal with | C．how to be dealt with | D．what to be dealt with |
She had to ___________four young children after her husband died.
| A．turn over | B．go over | C．watch over | D．take over |
The new dictionaries are very careful. They ___________well and already.
A. A. sell, have been sold outB. sold, had sold out
C. sell, sell out D. are sold, have been sold out
___________ number of foreign guests were invited to the meeting, butof 20 foreign guests didn’t turn up.
| A．A , totally | B．The, in total | C．A , a total | D．A, in all |