问题

It is believed that _ European scientist invented ___.

A:an a television
B:a a television
C:an the television
D:a the television

正确答案是：

同类题型

.I decided to pay a visit to my former teacher as soon as I____.

Paul’s wish is to become a pilot, ____?

You speak very good French! —ThanksI _________ French in Sichuan University for four years

The teacher asked _______________.

Listening is just as _____ as speaking in language learning.