Neighbors said they heard the man tell the woman that she couldn’t leave______ she gave back the money borrowed from him.
| A．unless | B．since | C．if | D．though |
Fortunately, someone who happened to be passing by called the fire department
________the fire broke out.
| A．hurriedly | B．quickly | C．instantly | D．shortly |
Isn't it time that children to bed since it is too late?
| A．went | B．had gone | C．have gone | D．go |
hard she tried, she couldn't control her feelings when she was told her baby had been found．
| A．As | B．While | C．However | D．Although |
－Have you got any particular plans for the coming winter vacation?
－Yes, _, I'm going to visit my grandparents．
| A．if necessary | B．if so | C．if ever | D．if possible |
Nowadays signs prohibiting smokinga common sight in restaurants, tea houses and shopping malls．
| A．are | B．is | C．were | D．was |