His mother is ill. He has to ________ her at home.
A. look at |
B. look after |
C. look for |
D. look into |
It’s a lovely day, _________?
A. isn’t it |
B. wasn’t it |
C. doesn’t it |
D. hasn’t it |
She hasn’t visited Thailand _______ England yet.
A. and |
B. or |
C. but |
D. so |
–How long has Mr. Liu taught English? --- _______ 1998.
A. Since |
B. In |
C. For |
D. At |
–Would you like to go to see the film with us?
--Sorry, I can’t. Because I ________ it twice.
A.have seen |
B. saw |
C. see |
D. will see |
Scientists think that there has been life on Earth for _______ years.
A. millions |
B. millions of |
C. million of |
D. million |