The telephone________ by the well-known scientist, Alexander Graham Bell.

Youspeak very good French! —Thanks I__________ French in Sichuan University for four years

下列句子划线部分表达得体的一项是

It’s said that (据报道) 11-year-old girl saw UFO yesterday.

“ Mrs Green. Do you think I can get an “A” in the final exam if I start working hard now— Of course. _____________.