All the students in this school are required to____ at least two lectures on how to study every month.
Mammals ________ nearly all warm-blooded animals except birds.
A study ______ that women find it more difficult to give up smoking than men.
A wonderful idea ______ me that day when I met with a tough problem.
You’ve done so much work —you’re ____ pass the exam.
The retired teacher is in his mid-seventies —seventy-six to be _______.