Leaves are found on all kinds of trees, but they differ greatly____ size and shape.
A．on B．from C．by D．in
Why are you so anxious? It isn’t your problem____.
A．on purpose B．in all
C．on time D．after all
—When did you last hear______Jay?
—He phoned me this morning, and we agreed____ a time and place to meet.
A．of; to B．about; with
C．from; with D．from; on
I thought we’d be late for the concert, ______ we ended up getting there ahead of time.
A．but B．or C．so D．for
Modern equipment and no smoking are two of the things I like______working here.
A．with B．over C．at D．about
Jane said she would come here ________ 9:00 and 9:30 tomorrow morning.
A．from B．at
C．between D．around
