_______ you start, you should go ahead.
| A．Once | B．Before | C．Until | D．Though |
______ he has gone abroad is not true.
| A．Whether | B．When | C．That | D．Why |
_______ is certain that practice makes perfect.
| A．What | B．It | C．There | D．Anything |
With a lot of work _______, I can’t help you tonight.
| A．do | B．doing | C．done | D．to do |
Neither Tom nor his parents _____football.
| A．liking | B．likes | C．like | D．are like |
. He was so ______ that he tricked me into giving him $500.
| A．persuasive | B．common | C．strange | D．disappointed |