In summer， food will go bad quickly ________ we put it into a fridge．（ ）
A．ifB．unlessC．as soon asD．while
There will be fewer workers in factories because most work _________ by robots in the future．（ ）
| A． |
is done |
B． |
was done |
| C． |
will be done |
D． |
will do |
Small cars are useful in cities with narrow __________．（ ）
| A． |
streets |
B． |
cinemas |
C． |
squares |
D． |
shop |
Which of the following sentences is correct？（ ）
| A． |
Many people wonder where has time gone． |
| B． |
Alice asked me what I do for waste sorting （垃圾分类）． |
| C． |
Could you tell me how far was it from here to your school？ |
| D． |
I don't know whether he will be back in a week． |
A true friend is a person ______ reaches for your hand and touches your heart．（ ）
| A． |
whom |
B． |
whose |
C． |
who |
D． |
which |
﹣______the theme park ______ in Shanghai two years ago？
﹣Yes． it's about Chinese traditional culture．（ ）
| A． |
Does； build |
B． |
Did； build |
| C． |
Is； built |
D． |
Was；built |