bad weather ! I can do something but to stay in bed for the whole day.
A. What a B. How a C.What D.How
---How long did it _____ you to work out the difficult maths problems?
---I ______ about half an hour on it .
A. take ; took B. spend ; took C. spend ; cost D. take ; spent
It is very _______ of you to speak in front of all those people .
A. polite B. honest C. funny D. brave
---Do you often play computer games?
---No, And so do ________ of my classmates, you know we are very busy
A. three fourths B. three four C. third four D. third fourths
I don’t know _____ or not he will come . _______ he comes , I will call you .
A. whether ; If B. whether ; Whether C. if ; If D. if ; Whether
The robot needs _______ once a month. And we will check it for you for free.
A. to check B. checked C. checking D. to checking
