________ these experiments were successfully completed would we think of going into humans.
| A．If only | B．Only if | C．So that | D．Even if |
The experiment __to be .
| A．turned out; greatly success | B．turned out; a great success |
| C．turned out; greatly successful | D．turned up; great success |
— What you said at the meeting hurt me badly.
—Sorry. But____________.
| A．I didn’t mean it | B．I didn’t mean to |
| C．I don’t mean it | D．I don’t mean so |
I knew nothing about the accident__________ I read in the newspaper.
| A．except that | B．except what | C．besides what | D．besides that |
—I am afraid no one will agree with you.
—I don’t think it ______ .
| A．minds | B．troubles | C．matters | D．works |
— ____.
— Thank you. I certainly will.
| A．Happy birthday to you |
| B．Let me help you with your English |
| C．Please remember me to your grandparents |
| D．Don’t forget to post the letter |