The doctor is not quite sure about what ________ the head injury will have on the patient. It may even cause brain damage.
A affect B effect C affection D effective
Paul doesn't have to be made________ .
| A．study | B．to study | C．studied | D．studying |
I can’t _ __it when people speak with their mouths full.
| A．live | B．stand | C．keep | D．take |
This book is worth ______ .
A to read B．reads C．read D．reading
You should apologize ____ your teacher ______ being late again.
| A．to; for | B．for; to | C．/; for | D．to; to |
When _______ this question, she keeps silent.
| A．asked | B．asking | C．to ask | D．being asked |