婴儿已经有意识地模仿成人的发音，能说“妈妈”“再见”“没了”等，判断该婴儿的月龄大约是（）。

A.5个月

B.6个月

C.8个月

D.10～11个月

E.12个月

My friend Bob just bought an apartment in a suburb of Beijing last week, which is much smaller than ours

but is three times _____ expensive. [ ]

A. very

B. so

C. too

D. as