.I was about to leave the house ____the telephone rang.
| A．before | B．when | C．while | D．after |
Thestudentsinourschooleach_________anEnglishdictionary.
| A．have | B．has | C．had | D．arehaving |
Thepairofshoes__________wornout.
| A．was | B．were | C．havebeen | D．hadbeen |
Aprofessorandawriter_________presentatthemeeting.
| A．was | B．is | C．were | D．hadbeen |
Hisfamily________musiclovers.
| A．allare | B．areall | C．is | D．arebeing |
Thosewho_________singingmayjoinus.
| A．areliking | B．likes | C．enjoy | D．isfondof |