Question

_______ we have learned about 2000 English words.
A. At first         B. After all         C. So far

Answer 1

C

At first起初，開始；After all畢竟，終究；So far到目前為止，經(jīng)常和現(xiàn)在完成時(shí)態(tài)連用。句意：到目前為止，我們已經(jīng)學(xué)了大約2000英語單詞。選C。