3.18 When Anna ()the room, a group of young men were talking eagerly round the table.

A. 　 explained

B. 　 explain

C. 　 to explain

D. 　 explaining

A. 　 Almost

B. 　 Right

C. 　 Just

D. 　 Every

A. 　 is broadcast

B. 　 is being broadcast

C. 　 has been broadcast

D. 　 had been broadcast

A. 　 so

B. 　 or

C. 　 but

D. 　 for

A. 　 but

B. 　 for

C. 　 since

D. 　 or

A. 　 enters

B. 　 has entered

C. 　 was entering

D. 　 entered

A. 　 if

B. 　 after

C. 　 that

D. 　 though

A. 　 were put

B. 　 being put

C. 　 put

D. 　 have put

A. 　 wealth

B. 　 knowledge

C. 　 courage

D. 　 strength