Listen! I hear some birds ___________ the tree.A. sing in B. singing in B. sing on D. singing on
_______ plastic bags we use,_______ it will be to our environment.A. The less; the better B. The fewer; the better C. The fewer, the worse
Moyan got the Nobel Prize in his _________.A. fifties B. fifty C. fiftieth
Jack found ______ interesting ______ the song Gangnam Style.A. it, singing B. it, to sing C. that, to sing
You are Hugo’s best friend. Can you ask him______ late for school?A.not be B. not to be C. don’t
I have _____ a member of the music club for many years.A. been B. became C. joined