Only by seizing every possible_____ to practice can you possibly hope to improve your spoken English.
| A．solution | B．opportunity | C．experience | D．touch |
They want the job ______ by the end of the week.
| A．to do | B．done | C．did | D．to be doing |
So _____ that modern industry cannot develop without it.
| A．electricity is important | B．important is electricity |
| C．electricity important is | D．important electricity is |
I feel it an honor ______ to speak here.
| A．to ask | B．asking | C．to be asked | D．having asked |
Scarcely _____ raining _____ the PLA fighters started on their way again.
| A．it had stopped...before | B．it had stopped...then |
| C．had it stopped...than | D．had it stopped...when |
He ______ English for six years by the time he takes his examination.
| A．was studying | B．would have been studying |
| C．had been studying | D．will have been studying |