Thomas is (tall) ______ than any other boy in the class but he is also regarded as the laziest.

A．At a post office.
B．At a library.
C．At a laboratory.
D．At a store.

A．When the meeting is to beheld.
B．Where the meeting is to be’ held.
C．Who are going to attend the meeting.
D．What is to be discussed at the meeting.