—My son is addicted to computer games. He is hopeless, isn't he?
—Yes, ________ he is determined to give up and start all over.
| A．if | B．when |
| C．even if | D．unless |
So quickly are science and technology advancing ________ is a possibility today may be a reality tomorrow.
| A．which | B．what |
| C．that which | D．that what |
In some places women are expected to earn money ________ men work at home and raise their children.
| A．but | B．while | C．because | D．though |
There were some chairs left over ________ everyone had sat down.
| A．when | B．until | C．that | D．where |
—Are you ready for Spain?
—Yes，I want the girls to experience that ________ they are young.
| A．while | B．until | C．if | D．before |
We'll have a picnic in the park this Sunday ________ it rains or it's very cold.
| A．since | B．if | C．unless | D．until |
I'm sorry you've been waiting so long，but it'll still be some time ________ Brian gets back.
| A．before | B．since | C．till | D．after |
—Did you return Fred's call?
—I didn't need to ________ I'll see him tomorrow.
| A．though | B．unless | C．when | D．because |
A small car is big enough for a family of three ________ you need more space for baggage.
| A．once | B．because | C．if | D．unless |
—Have you got any idea for the summer vacation?
—I don't mind where we go ________ there's sun，sea and beach.
| A．as if | B．as long as |
| C．now that | D．in order that |
The lawyer seldom wears anything other than a suit ________ the season.
| A．whatever | B．wherever | C．whenever | D．however |
Many of them turned a deaf ear to his advice ______ they knew it to be valuable.
| A．as if | B．now that | C．even if | D．so that |
-- I am going to Sidney for further studies next month.
-- That's fantastic. Can you keep emailing me ______ you are there?
| A．though | B．because | C．until | D．while |
__________ you understand the rule, you will have no further difficulty.
| A．While | B．Once | C．Though | D．Unless |
Nobody believed a 92-year-old man could run a marathon_______he passed the finishing line. People of all ages can challenge themselves.
| A．if | B．since | C．until | D．unless |
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