I wrote a letter of compl
aint(投诉)，and the airline have promised to _______the matter． 
| A．1ook at． | B．1ook into | C．1ook after | D．1ook out |
--How is_______ going with you?
-- So so.
| A．everything | B．anything | C．something | D．nothing |
One way to understand thousands of new words is to gain _____ good knowledge of basic word formation.
| A．/ | B．the | C．a | D．one |
--Do you know anyone in Paris?
--No, I’ll make friends once______ .
| A．I’m settled | B．I have settled |
| C．I’ll be settled | D．I’m settling |
The research is so designed that once ______ nothing can be done to change it.
| A．begins | B．having begun | C．beginning | D．begun |
He is always______fault with other people though he doesn’t do his own work properly.
| A．seeking | B．looking | C．finding | D．putting |