The young scientist has made such great achievements in his chosen field ______ nobody else can make.
| A．that | B．what | C．which | D．as |
is known, more students tend to study abroad after
graduation from high school.
| A．What | B．That |
| C．Which | D．As |
Whoever breaks the law .
| A．must have punished | B．will be punished |
| C．has been punished | D．are punished |
I wonder it is has made me I am now.
| A．what ; that ; what | B．what ; that ; that |
| C．that; what; what | D．what ; what ; what |
Not until we left our school how warm it was there.
| A．had we realized | B．did we realize |
| C．have we realized | D．realized we |
Ms. Romero is the first person known with Ebola outside of Africa.
| A．to infect | B．to be infected |
| C．infecting | D．to have become infected |