Your behavior won’t be _____ in our house, so you have to be careful!
| A．kept | B．tolerated | C．taken | D．changed |
The general manager’s _____ directions confused the staff, who didn’t know what to do.
| A．ambiguous | B．complex | C．unconscious | D．punctual |
. Being hard-working is of the highest __________ to becoming successful.
| A．important | B．to be important |
| C．importance | D．being importance |
— Did you see _________ jacket on the playground just now?
— Is it _________ new one and very cool?
| A．a; the | B．the; a | C．a; a | D．the; the |
—Why are you standing here?
—I’m waiting for Shirley. She will be back _____.
| A．gradually | B．originally | C．shortly | D．abruptly |
. By the year 2020 scientists _____ a lot of research on AIDS.
| A．had done | B．do | C．are doing | D．will have done |