— Do you like Nack? — Yes, Nack is good, kind, hard-working and intelligent; __________, I can’t speak too highly of him.
The lawyer listened with full attention, ___ to miss any point.
Lots of rescue workers were working around the clock, ___ supplies to Yushu, Qinghai Province after earthquake.
Our foreign English teacher always ___ us students how to get to know about the culture and customs of foreign countries.
—What do you think of the man you have just interviewed? —He gave me a(an) ___ that he was not very ___ about the job.
I’ve always been very ___ about giving my address and telephone number to strangers.