____________ many times, but he still couldn’t understand it.
A．Though he had been told B．Having been told
C．Having told D．He had been told
It was in the lab_________was taken charge of by Johnson_________they did the experiment.
A．where; which B．which; that C．which; which D．that; which
_______ cleaning the yard and making up the beds for the old, we also read newspapers for them and had chats with them.
A．Except for B．Rather than C．Apart from D．Instead of
-----I stayed up late last night preparing the speech.
-----__________ you look so tired today.
A．No doubt B．No problem C．No time D．No wonder
Peter’s jacket looked just the same as Jack’s, but it cost ___________his.
A．as much twice as B．twice much as C．twice as much as D．as twice much as
You were charged________ignoring your duty. Who accused you_______such a crime?
A．with; to B．of; with C．with; of D．for; of
