He jumped out of bed and ran to the door to see ________ the parcel was for.
A．who B．why
C．where D．what
It is important to introduce children to healthy nutritious foods from ________ they begin to eat solids.
A．what B．when
C．that D．which
Suppose we meet with a situation ________ none of us can deal with, what then?
A．where B．when
C．what D．that
It is announced that big prizes will go to ________ finishes the assignment on time.
A．whom B．who
C．whomever D．whoever
It remains to be seen ________ the newly formed committee's policy can be put into practice.
A．that B．which
C．what D．whether
Helen has just heard the news from her father ________ her boyfriend David will come back soon.
A．when B．how
C．which D．that
