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Complete each sentence with one of four choices given below：
1.It is not easy to learn English well but if you ，you will succeed in the end.
A)hang up B)hang about
C)hang on D)hang onto
2.San Francisco is usually cool in the summer，but Los Angeles .
A)is rarely B)rarely is
C)is hardly D)is scarcely
3.We had to a lot of noise when the children were at home.
A)go in for B)hold on to
C)put up with D)keep pace with
4.Small farms and lack of modern technology have agricultural production.
A)blundered B)tangled
C)bewildered D)hampered
5.There was something wrong with the traffic signal.Our bus was for nearly half an hour.
A)held on B)held back
C)held in D)held up
6.When Jane fell off the bike，the other children .
A)were not able to help laughter
B)could not help but laughing
C)could not help laughing
D)could not help to laugh
7.The story was so touching that I could hardly my tears.
A)hold on B)hold on to
C)hold up D)hold back
8.Should you require any further details at this time，please do not to contact me.
A)void B)hesitate
C)delay D)prevent
9.The discussion quickly became a very argument about increasing price.
A)heated B)roaring
C)warm D)boiling
10.The painting was a valuable family possession，which had been from generation to generation.
A)handed over B)handed out
C)handed down D)handed across
