Great changes ________ in China since the People’s Republic of China _________ in 1949.
Can you tell me what to _________?
----Do you know how toa crying baby? ---Sorry, I don’t know . I think it’s too hard.
----Must he finish the work before supper? ----No, he . He finish it after supper.
_______useful the dictionary you gave me last week is!
When you got there, how many guestsin the meeting hall?