______she is not in good health, ______she works very hard .
I won’t leave the classroom until my homework ______.
_______is possible to happen if you pay attention to safety.
— Did you go to bed early last night?—No. I watched a _____ movie, so I didn't go to bed until 11 o’clock.
—What _______ fine weather it is! Shall we go hiking?—Yes. What _______ good suggestion it is!
Can you tell the differences ______‘farther’ ‘further’?