— Can I help you?— Do you have any of Michael Jackson's CDs ? I would like to buy _____.
It was in the lab __________was in the charge of Professor Smith __________they carried out the experiment.
—Bad luck. My computer doesn’t work. —Why not turn to John? No one can match him in our class when it __________repairing computers.
Hellen doesn’t know how much I spent in repairing the house. If she ever found out, I’m sure she me.
When Peter speaks in public, he always has difficulty ______ the right things to say.
To avoid on how to use the word, you’d better refer to a dictionary.