Gun control is a subject _____ Americans have argued for a long time.
A. of which B with which C. about which D. into which
---My Dad began to teach me English when I was eight.
---Wow. You must have studied English for six years, ?
| A．haven’t you | B．mustn’t you | C．needn’t you | D．don’t you |
--With the country’s pension fund gap becoming wider than ever, retirement age should be postponed immediately.
---Easier said than done. we take all factors into account, we shall be faced with some other social problems.
| A．Unless | B．Until | C．When | D．Once |
-- We hadreally smoggy December this year.
--- I can’t rememberwinter when air was polluted so severely.
| A．a; / | B．a; the | C．the; the | D．a; a |
At present, there are many instances the governments distribute money to the citizens worldwide, but the sources of fund are still limited.
| A．how | B．which | C．where | D．when |
--- Shall we watch Personal Tailor directed by Feng Xiaogang this weekend?
---. Isn’t it meaningful that we do some voluntary work in the nursing house?
| A．How come | B．Forget it | C．Don’t mention it | D．Couldn’t agree more |