He returned home safe and sound after a fierce battle, ____ was unexpected.
| A．which | B．as | C．that | D．it |
It was already 11 o’clock in the evening they arrived at the hotel.
| A．when | B．before | C．that | D．since |
You may give this message to is in the office.
| A．who | B．easy | C．modern | D．certain |
Most hotels in Sanya were full during the Spring Festival, but finally
we find a room in a small guesthouse near the seaside.
| A．ought to | B．could | C．might | D．were able to |
Now many people higher degrees probably finish up nowhere when they try to get a highly-paid job.
| A．with | B．in | C．for | D．at |
Nowadays with the development of science, more and more new technology to the fields of IT.
| A．has introduced | B．was introduced | C．will introduce | D．is being introduced |