The primary purpose is to _____ those achievements in biological research _____ the public.
| A．make; known by | B．make; known to | C．make; know to | D．make; knowing by |
You'd better not ring me up between 9 and 10. I________ an important meeting then” Dr. Lee said.
| A．have | B．had | C．was having | D．will be having |
If Joe' s wife goes to the party, _______.
| A．so does he | B．so will he | C．he will either | D．either he does |
thecity’spublicschoolsystemshouldbeopentothechildrenofmigrantworkershas become the focus of discussion.
| A．That | B．If | C．What | D．Whether |
Don’tletthesadnessofyourpastandthefearofyourfuture ___thehappinessofyour present.
| A．to ruin | B．ruin | C．ruining | D．ruined |
— I’m sure Andrew will win the first prize in the final.
— I think so. He ______ for it for months.
| A．is preparing | B．was preparing |
| C．had been preparing | D．has been preparing |