Tom, who had expected how it would go with his son, had a great worry ____ his mind.
| A．on | B．in | C．with | D．at |
As is known to all, _______ strong and powerful China will certainly benefit _____ whole world.
| A．a; a | B．the; a | C．the; the | D．a; the |
I’ve already told you that I’m going to buy it, ________.
A. how much does it cost B. no matter how it costs
however does it cost much D. however much it costs
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