答案:D
--- I want to know if she ______ in my birthday party tonight.
--- I believe if she ______ her homework, she will join us.
A.will join; will finish
B.will join; finishes
C.joins; finishes
D.joins; will finish
亚欧大陆中部、北美洲中部和南美洲南部全都有分布的自然带是()。
A.热带草原带
B.热带沙漠带
C.温带草原带
D.温带森林带