Some birds cannot fly well, _______, the chicken has wings, but its flying muscles are not strong enough to be useful.
A. for example
Chọn đáp án D
Just_______ he died, my friend who wrote poetry published his first book.
_______few species that live on the ground, most monkeys live in tress.
Blindfish, which spend their whole lives in caves, have _______ eyes nor body pigments.
Glucose does not have to be digested, _______ it can be put directly into the bloodstream.