His latest research is at the of genetic science.
| A．maiden voyage | B．cutting edge |
| C．focus group | D．daily basis |
He admitted that when ______ comes to repairing a computer, he had little knowledge of it.
| A．he | B．that |
| C．this | D．it |
The old temple ______ roof was damaged in a storm is now under repair.
| A．where | B．which |
| C．its | D．whose |
2,000 adults will be questioned to see ______ they think ghosts are real on Halloween.
| A．that | B．whether |
| C．what | D．which |
______ the instructions very carefully when filling in the form.
| A．Following | B．To follow |
| C．Follow | D．Followed |
She laid a tablecloth ______ the dining table to keep dust ______ it.
| A．on; out of | B．above; from |
| C．over; off | D．up; away |