Prep-T1-Q117

[oneseven]

Q117
The population of India has been steadily increasing for decades, and it will probably have what is estimated as 1.6 billion people by 2050 and surpass China as the world's most populous nation.

A. it will probably have what is estimated as
B. they are likely to have
C. the country will probably have
D. there will probably be
E. there will be an estimated

the country 是單數 為什麼是用have 呢????

[小花]

因為will + 原形動詞(have)

has不是原形動詞喔!