45．―Jackson，you look tired．What's the matter?

―I ________ my son ________ he came back at 11：00 last night．

A．waited，to                                              B．waited，until

C．didn't wait，to                                           D．didn't wait，until

Around the world，people have different ideas about what good mariners are．

When you go to restaurants in different parts of the world，it's __46__ to know the right and wrong things to do．For example，in China it's OK to  __47__ a lot of noise in a restaurant．In fact，if a restaurant isn't noisy and __48__ you may think there's something __49__ with it．However，in many western countries．restaurants ate __50__ places．If a table is too loud，other people who are eating there might even __51__ to the owner of the restaurant．

Paying the bill is also different from country to country In China，one person usually pays for __52__．In western countries，one person pays if he or she is entertaining clients（招待当事人，顾客），but __53__ friends eat together，they usually __54__ the cost．This is called “going Dutch”（均摊费用）．Also，when westerners pay the bill，they usually leave some money for the __55__．This is called “leaving a tip” ．Leaving a tip is thought to be __56__．In the US，it's __57__ Jo leave tips 10%，15%，or 20% of the bill，which is decided __58__ how good the service is．Good waiters can make a lot of money!

The way people eat food is __59__ in the world，but you can __60__ the same kind of food in many countries．Chinese and Italian food，for example，are popular all over the world．

44．The population in Beijing is much larger than ________ in Jinan．

A．that                      B．this                     C．those                     D．these

43．―What are the boys doing?

―They are busy ________ the flew planted trees．

A．water                         B．to water               C．watering                 D．watered

42．Everyone should study hard．The more you learn，________ you will be．

A．the more              B．more                     C．the wiser                D．wiser

41．―Do you know ________ it next?

―No，I don't know．Can you give me some good ideas?

A．what to do                  B．how to do               C．what to do it           D．how you do

40．Students are supposed to respect the teachers ________ strict with them．

A．who                    B．who is                 C．that                       D．who am

39．Our teacher is a kind man．He is a person ________．

A．to get on                                                 B．getting on

C．getting along with                                      D．to get alone with

38．―Why did Tom go back home in such a hurry?

―Because he ________ his text books at home．

A．forgets                B．forgot                  C．left                        D．leaves

37．―Why were they made ________ out of the door?

―Because they didn't finish their homework．

A．to stand               B．stand                   C．stood                     D．were standing

36．―What are they talking about?

―They are talking about the photos ________ on the Great wall．

A．taking                 B．were taken           C．have been taken      D．taken