________ your letter, I would have started off two days ago.
| A．If I received | B．Should I receive |
| C．If I could have received | D．Had I received |
You as well ________ right.
| A．I are | B．I am | C．as I am | D．as I are |
--Hello, could I speak to Mr. Smith?
--Sorry, wrong number. There isn't ____________ Mr. Smith here.
| A．/ | B．a | C．the | D．one |
Will you see to ______________ that my birds are looked after well while I'm away?
| A．them | B．yourself | C．it | D．me |
. — Will you go to Tom’s birthday party tomorrow?
— No, _____________ invited to.
| A．if | B．until | C．when | D．even though |
I don't think I'll need any money but I'll bring some _______________.
| A．at last | B．in case | C．once again | D．in time |