They usually have the medicine __________ before putting into the market all over the country.
| A.testing out |
| B.to be tested out |
| C.being tested out |
| D.tested out |
Home is ________ somebody notices when you are no longer there.
| A.that | B.when |
| C.how | D.where |
—Mom!Jack has broken a cup!
—Doesn’t matter. Accidents ________ happen.
| A.should | B.must |
| C.will | D.Shall |
The scientist does not study nature ________ it is useful to do so. He studies it because he takes pleasure in it.
| A.until | B.though |
| C.because | D.Unless |
You are hardworking and surely most of you _____ a college admission notice by the end of September this year.
| A.will receive |
| B.will be receiving |
| C.will be received |
| D.will have received |
I _____ through the hard time but for my teacher’s generous and timely help.
| A.couldn’t have gone | B.could go |
| C.mustn’t have gone | D.hadn’t gone |