Complete each of the following sentences with the most likely answer .（25 points）
1.It is generally believed that _______ education can make a big difference to a person’s life.
2.James Michell was deaf ， dumb ， and blind from birth ， but he distinguished people _______ their smells ， and in this way formed correct judgments.
3.The soldier was awarded a medal because he _______ great bravery under fire.
4.My intent is to help those parents who now realise that they _______ be overindulging their children but don’t know how to stop .
5.“_______ bottle up your anger and have an almighty explosion ， why not express it now and then？”
6.We cannot accurately predict how much carbon dioxide _______ by factories will remain permanently in the air.
7.Historians agree that early American Indians came from Siberia ， _______ a long-vanished land bridge across the Bering Strait.
8._______ ， but the fire brigade came too.
A.If only the police arrived
B.Not only the police arrived
C.Only if the police arrived
D.Not only did the police arrive
9.Columbus Day _______ on the twelfth of October because on that day in 1492， Christopher Columbus first landed in America.
10.Every one of us has several habits， _______ most of them are unconscious and we perform them without any thought.
11.Only when the war was over in 1953 _______ to get back to work .
A.that was he able
B.that he was able
C.was he able
D.he was able
12.If every requested object is given on demand ， a child would have _______ opportunities to learn the value of money .
13.The supervisor could have prevented the accident _______ it beforehand .
A.has he known
B.had he known
C.if he knows
D.if he knew
14.The government has decided to increase _______ for civil servants.
15.It gradually _______ me that much of what they had said was far from the truth .
16.Nowadays many parents feel guilty _______ spending little time with their children .
17.It is _______ knowledge that water freezes at 0℃。
18.A dedicated nurse is always ready to _______ patients’ needs.
19.Would you _______ me a favour and keep an eye on my house while I am away？
20.How do the two products compare in terms _______ quality and reliability？
21．A woman who wishes to have a successful career has to _______ some sacrifices.
22．His parents offered to settle his debts , but he _______ hear of it .
23．My parents don’t _______ my trying to earn money as a part-timer.
24．She is proud that her two lovely daughters are blessed _______ a talent for music.
25．The little girl’s bedroom is redecorated in pink , which makes it _______ cosy.
A．all the less
B．all the more