20．It's known that China is a great country with the largest population in the world．However，too large population can also be a problem．To（31）Bthe population problem，our government decided to have one-child policy （政策）．After the policy was carried out （施行） for （32）A，while it did help to control the population growth，problems like aging also became clear，Last month，all Chinese couples（33）Cthat they could be allowed to have two children．As the one-child policy came to an end，many Chinese children，including you，may have a brother or sister in the future．
But（34）Awould your life be like growing up with a brother or a sister？
Having a brother or sister can（35）Dyou away from some bad feelings such as loneliness and fear．Your brother or sister can give you something that（36）Ccan't give you．You may not feel lonely at home anymore because（37）Cwill be someone playing with you and（38）Bsecrets with you，Of course，sometimes you may argue or even fight with him or her，but you will forgive（原諒） each other soon．
How do parents （39）Cthe two children？
The way the parents treat the two children may be different．It's said that the first-born child often gets more attention from their parents than（40）Bchild．Parents teach the first-born child to take more responsibilities（責(zé)任） and（41）Bhim or her to take care of the younger brother or sister．（42）C，the first-born child is more responsible，hard-working and serious．He or she often does well at school and work．However，when the second child arrives，parents often feel（43）Aexcited．The second child has to compete with the elder brother or sister for their parents'attention and love．That's why the second born child is often creative and humorous．
（44）Cnow the government encourages people to have more children，most young couples don't want more children because of the pressure from work and family．Maybe it（45）Da period of time for people to accept the new policy．
| 31．A．work out | B．deal with | C．start with | D．connect with |
| 32．A．some time | B．some times | C．sometimes | D．sometime |
| 33．A．has told | B．tell | C．were told | D．will tell |
| 34．A．what | B．why | C．how | D．who |
| 35．A．stop | B．a(chǎn)sk | C．make | D．keep |
| 36．A．parents | B．teachers | C．friends | D．classmates |
| 37．A．it | B．one | C．there | D．they |
| 38．A．telling | B．sharing | C．keeping | D．making |
| 39．A．serve | B．raise | C．treat | D．punish |
| 40．A．other | B．the other | C．others | D．a(chǎn)nother |
| 41．A．make | B．expect | C．a(chǎn)llow | D．punish |
| 42．A．At first | B．In the end | C．As a result | D．In a word |
| 43．A．more | B．most | C．least | D．less |
| 44．A．Because | B．So | C．Although | D．But |
| 45．A．spends | B．costs | C．pays | D．takes． |
