Can you tell me _______？（ ）
A．what does the Belt and Road mean
B．what the Belt and Road means
C．what will the Belt and Road mean
How are you getting on with your cousin？
Very well． He is really _______ and joins in all kinds of activities in his spare time． （ ）
A．politeB．strictC．activeD．careful
A research suggests that walking helps people live longer．
I quite agree， but it_______ on when and how they walk． （ ）
A．remainsB．separatesC．returnsD．depends
In the past five years， China has played an important role in the Belt and Road．
It has__________ many nations a great chance to communicate． （ ）
A．offeredB．supportedC．includedD．directed
It is reported that a kind of new smart phones can test the air quality（质量）around you．
__________fast the technology develops! （ ）
A．WhatB．What aC．HowD．How a
________ you _______the Chinese Culture Festival in the Central Square？
Yes． It was really a great success.( ）
A．Are；attendingB．Will；attend
C．Do；attendD．Did；attend