．— Has Tom finished his report so far?
— I have no idea．He ______it this morning．
A．did B．has done C．was doing D．had done
．Most of the teaching equipment presented by the Hope Project, as well as the books, ______made good use of in the village school．
A．have B．has C．have been D．has been
．— Do you happen to have twenty dollars on you?
—______?
— I want to buy a reference book．
A．So what B．Why not C．How much D．What for
．But for the storm, we ______ earlier．
A．can arrive B．will arrive C．had arrived D．could have arrived
A good friend of mine from when I was born _______ at my home right before I left for Beijing．
A．showing up B．showed up C．to show up D．shows up
．The factory I worked______ has been taken down and replaced by some buildings．
A．in it B．in which C．in D．in that
