The fireman succeeded in saving all the people in the house on fire, _______they knew they were in great danger themselves.
| A．because | B．since | C．unless | D．though |
I’m new here.Would you please ___ me a favour?
| A．give | B．did | C．bring | D．do |
____ at a college or university in the USA, Chinese and other international students must demonstrate a strong ability in spoken and written English.
| A．Having been accepted | B．To be accepted | C．Being accepted | D．Accepted |
With a lot of difficult problems ____, the manager felt worried all the time.
| A．settled | B．to be settled | C．settling | D．to settle |
As we all know, it was _____ that resulted in the terrible car accident.
| A．because of her carelessness | B．her being careless |
| C．because she was careless | D．she was so careless |
In order not to be disturbed ,I spent three daysin my study.
| A．locking | B．locked | C．to lock | D．lock |