2.9 Could you please ()why you are so late today?

A. 　 bright

B. 　 weak

C. 　 soft

D. 　 natural

A. 　 then

B. 　 when

C. 　 suddenly

D. 　 and

A. 　 but

B. 　 for

C. 　 since

D. 　 or

A. 　 On

B. 　 For

C. 　 By

D. 　 With

A. 　 receives

B. 　 produces

C. 　 sends

D. 　 earns

A. 　address

B. 　 word

C. 　 area

D. 　 picture

A. 　you needn’ t

B. 　you won’ t

C. 　you can’t

D. 　you don’ t

A. 　 explain

B. 　 explains

C. 　 toexplain

D. 　 explaining