However hard he tries，the recorder .
| A．didn’t work | B．won’t work | C．isn’t working | D．hasn’t worked |
I ______ her, but I never could.
| A．ought to help | B．must help | C．must have helped | D．ought to have helped |
— Anything new in the new regulations（规则）? — They will ______ to us all.
| A．great benefit | B．do harms | C．do good | D．for the benefit |
We don’t doubt _____ he will succeed in the research work.
| A．that | B．whether | C．how | D．what |
We couldn’t trust her for she is always____. Look, she___ some eggs on the table and said these newly- ____ eggs were her own. In fact they were her neighbor’s.
| A．lying; lay; laid | B．laying; lied; lain | C．lying; laid; laid | D．laying; lay; lain |
What he said just now_______me of that American professor.
| A．mentioned | B．informed | C．reminded | D．memorized |