. I have taught hundreds of students,___________ having been working in their fields for years.
| A．some of whom | B．some of them | C．most of whom | D．who |
This book can be of help to ________ wants to do the job.
| A．who | B．whoever | C．no matter who | D．whomever |
She made a suggestion that the plan ______________ as soon as possible.
A. be carried out B was carried out
C. should carry out D. would be carried out
— I seldom watch TV, but listen to the radio a lot .
— ___________.
| A．So do I | B．Neither do I |
| C．I am the same | D．So it is with me |
She doesn't know _________________ made her daughter so sad this morning.
| A．what was it | B．why it was that |
| C．how that was | D．what it was that |
Only when __________________ permission _______________ allowed to enter the lab.
| A．a teacher has given; are the students | B．has a teacher given; are the students. |
| C．has a teacher given; the students are | D．a teacher has given; the students are |