--Who is the old man talking with your teacher? ---I don’t know. I _ him before.
Although all of the apples ________, none of them ________ good.
With a large amount of work _______, the chief manager couldn’t spare time for a holiday.
Not only____ interested in football but ___ beginning to show an interest in it.
Some cyclists make the _______ that traffic laws do not _______ them. It is not true, _______.
Before the exam, the pressure led to sleepless nights. I was afraid I couldn’t _______ my parents’ expectations.