E-shopping, when properly _____ ,can save us a lot of time and energy.
| A．done | B．doing | C．to do | D．is done |
---_____ should we look down upon the poor.
---I’m with you on that.
| A．By all means | B．By any means | C．By means of | D．By no means |
When was _____ you last met Jennifer? I haven’t seen her for ages.
| A．it that | B．it | C．it what | D．what |
If you listen to me, you _____ have some candies, my son.
| A．should | B．shall | C．must | D．may |
They had just taken their seats, then _____
| A．the chairman came | B．the chairman comes | C．came the chairman | D．comes the chairman |