Countless people in developing countries no longer suffer malnutrition.______，poverty remains a problem worldwide.
| A．While | B．Nevertheless | C．Besides | D．In addition |
A model or an experiment in a science class can help students see things which would ______ remain hidden.
| A．otherwise | B．still | C．thus | D．therefore |
We must take measures to protect endangered wildlife ______it is too late.
| A．now that | B．as long as | C．unless | D．before |
People living in the area where there is a lack of electricity often keep a supply of candles_______power failure.
| A．in case of | B．once | C．even if | D．in course of |
_Hai Yan is a famous Chinese novelist, _______writings are thought highly of.
| A．whose | B．who | C．which | D．whom |
_Was it eleven o’clock _______you arrived home last night?
A.when that ince hile
_Along with the letter was his promise_______he would visit me the coming month.
| A．which | B．that | C．what | D．whether |
I have been keeping the portrait_______I can see it every day,as it always reminds me of my childhood in Paris.
| A．since | B．where | C．as | D．if |
I —Do you have anything in mind_______ you’d like to have for dinner?
—Well, _______is okay for me.
| A．that;anything | B．which;everything |
| C．what;nothing | D．where;something |
Schools in the south tend to be better equipped，_______those in the north are relatively poor.
| A．while | B．since | C．when | D．as |
_I like to have my photos taken_______there are mountains and rivers.
| A．there | B．in which | C．when | D．where |
_You’d better take something to read when you go to see the doctor_______ you have to wait.
| A．even if | B．in case | C．as if | D．in order that |
_The work is easy for an expert _______it is difficult for an inexperienced person.
| A．because | B．therefore |
| C．while | D．unless |
_You must get up early in the morning, ______we’ll have to leave without you.
| A．and | B．but | C．or | D．so |
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