I__________ a sweet dream when the alarm clock rang this morning.
A.have B.had C.am having D.was having
— Do you have any plans for the coming weekend?
— Yes. I__________ Peking University with my friends.
A.visit B.will visit C.have visited D.was visiting
— Has Grandma arrived?
— Not yet. She will give us a call as soon as she__________.
A.lands B.landed C.will land D.was landing
The Adventures of Tom Sawyer __________ by Mark Twain.
A.writes B.wrote C.will be written D.was written
Since 2008, China__________ a powerful high-speed railway network.
A.develop B.developed C.has developed D.will develop
Supercomputers are thousands of times__________ than ordinary computers.
A.fast B.faster C.fastest D.the fastest
