. —______ that he managed to get the book?
— Oh, his sister helped him.
| A．Where was it | B．What was it | C．How was it | D．Why was it |
They pretended ________ hard when their boss passed them.
A. to work B. being worked
to be working D. working
— Mary, let’s go to the lecture by Hawking, which is said to be very interesting.
— I’d like to, but I ________ finish the report first.
A. can B. may
must D. shall
After being broadcast on TV, the news was known by all ________.
A. at any time B. in no time
all the time D. at one time
It occurred to me ________ Jack might be interested in the problem we had discussed.
A. what B. why
how much D. that
Mary wrote books to earn money while John gained his wealth ________ selling Mary’s works.
A. with B. by
on D. through