I can't take the place of her as an English teacher.
I find it hard to express my feelings in words.
The boys were whispering; I knew they were up to something.
It is believed that whales have their own language.
Everybody knew she could speak English well.
It's quite difficult to master French in 2 or 3 years.
Any student of this school must learn one more foreign language besides English.
What do you call this bird in English?