We teachers must see to ________that every student can understand.
| A．all | B．that | C．it | D．one |
Thelastplane___,theyhadtostayinthehotelforanothernight.
| A．left | B．havingleft | C．havingbeenleft | D．beleaving |
Thecompositiongivenbytheteacher___,AlicewenttowatchTV.
| A．beingdonewell | B．hasbeendonewell |
| C．havingdonewell | D．donewell |
Theweather ___ fine,theydecidedtogooutforawalk.
| A．were | B．was | C．is | D．being |
Mr. Green is said _____ an experiment to prove the new method of solving the problem when young.
| A．to do | B．to have done | C．to be doing | D．to have been doing |
You will see this product made in this factory _____ wherever you go.
| A．to be advertised | B．advertised | C．advertise | D．advertising |