Color TV was first shown in 1929. It took more than two decades, ________， until 1951, for
color broadcasts to begin in the USA.
A. though B. therefore C. otherwise D. anyway
His suggestion is worth_____.
| A．consider | B．considered | C．to consider | D．considering |
It is re ported that the United States uses ___ energy as the whole of Europe.
| A．as twice | B．twice much | C．twice much as | D．twice as much |
－Mr Wang is a man of few words, but quick in mind.
－__________, you know.
| A．A single flower doesn’t make a spring. |
| B．A man of words and not of deeds is like a garden full of weeds. |
| C．A still tongue makes a wise head. |
| D．All that glitters is not gold. |
Come and see me whenever __________.
| A．your are convenient | B．you will be convenient |
| C．it is convenient to you | D．it will be convenient to you |
You will regret _______ the beautiful scenery.
| A．not seen | B．not to see | C．having not seen | D．not having seen |