Tom apologized for______ to inform us of the change in the working plan.
| A．his not being able | B．him not to be able |
| C．his being not able | D．him to be not able |
--Sorry, it's already 6 o’clock. I have to be off for an appointment.
--OK. ________.
| A．It couldn’t be better | B．You really have me there |
| C．Let’s call it a day | D．Take your time |
Over 200, 000 hotel reservations were made in Hong Kong through Taobao last year, _______ it the most popular travel destination among Chinese netizens.
| A．making | B．to make | C．having made | D．made |
The sleeping baby would be scared _______ a sudden loud noise.
| A．was there | B．there was | C．should there be | D．there should be |
Life isn’t meant to be easy and you have to _______ some pain to 1earn the skills to move forward.
| A．get across | B．go over | C．get into | D．go through |
One can’t do extreme sports _________ he or she has had some training.
| A．if | B．unless | C．once | D．since |