—The fishermen should have been warned of the bad weather．
— ，but they didn’t listen to it．
| A．So were they | B．Yes．they were |
| C．So should they | D．Yes．they should |
I thi
nk David, _______ you, ______ to blame.
| A．rather than; is | B．rather; are | C．more than; are | D．less than; is |
Someone is ringing the doorbell. Go and see _______.
| A．Who is he | B．who he is | C．Who is it | D．who it is |
. One advantage of playing the guitar is _____ it can give you a great deal of pleasure.
| A．how | B．why | C．that | D．when |
What you said just now ______ me of that American professor.
| A．informed | B．reminded | C．memorized | D．mentioned |
Looking up, I saw that some children _____ rags were looking at me silently as I ate. 
| A．by | B．in | C．with | D．on |