She and her family bicycle to work, _________ helps them keep fit.
| A． |
which |
B． |
who |
C． |
as |
D． |
that |
It’s standard practice for senior 3 students like us ________ only 3 day off during our National Day holiday.
| A．having | B．had |
| C．to have | D．have |
The internet was flooded with a game called the Ice Bucket Challenge（冰桶挑战）, ________ raise awareness for a disease called ALS.
| A．aims to | B．aim to |
| C．aiming to | D．was aimed to |
The visiting minister expressed his satisfaction with the talks, ______ that he had enjoyed his stay here.
| A．having added | B．to add |
| C．adding | D．added |
____ on ten years of observation and study, the story shows that everyone dreams every night, whether they realize it or not.
| A．Basing | B．Based |
| C．Being based | D．Having based |
There are more than 740 million Chinese _______ to second-hand smoking in public places now.
| A．are being exposed | B．exposed |
| C．to expose | D．having been exposed |