If you don’t know that _____ is the mother of success, you are sure to be _____ in life.
| A．failure; failure | B．a failure; a failure |
| C．a failure; failure | D．failure; a failure |
I’m tired out．I stayed up the whole night, ______ for my midterm math exam．
| A．studying | B．to study | C．to be studying | D．studied |
The first prize goes to _______ makes the greatest contribution to the company.
| A．whomever | B．whichever | C．no matter who | D．whoever |
—There aren’t any toys in our suitcase．Where have you put them?
—Oh, no．That old lady sitting next to us ______ have taken ours by mistake.
| A．must | B．could | C．should | D．would |
“Drive-ins” have large parking lots ______ customers are served in their cars by waitresses．
| A．who | B．when | C．which | D．where |
—What about the services in this hotel?
—They are at least as good as, if not superior to, ______ in yours.
| A．it | B．those | C．that | D．the one |