Only those who have experienced hardship ____ well aware of what happiness means.
| A．can they be | B．they can be | C．can be | D．they can |
A person ______ e-mail account is full won’t be able to send or receive any e-mails.
| A．who | B．whom | C．whose | D．whoever |
I’m trying to break the _______ of getting up too late
| A．tradition | B．convenience | C．habit | D．leisure |
My parents _____ in Hong Kong. They were born there and have never lived anywhere else.
| A．live | B．lived | C．were living | D．will live |
---- We’re organizing a party next Saturday, and I’d like you to come.
---- _______! I have another one that day. Thank you just the same.
| A．Good luck | B．What a pity | C．Never do it again | D．Well done |
______ the project in time, the staff were working at weekends.
| A．Competing | B．Having completed | C．To have completed | D．To complete |