【推荐1】--- What would you do if it rains tomorrow?
--- We have to carry it on, ________ we’ve got everything ready.

A．since

B．though

C．in case

D．unless

【推荐2】Parents should take seriously their children’s requests for sunglasses ______ eye protection is necessary in sunny weather.

A．because of	B．though
C．because	D．unless

【推荐3】Experts warn that medical waste from hospitals, ______ not handled properly, may lead to the spread of diseases.

A．because

B．as

C．unless

D．if

【推荐1】The islanders hadn’t got well prepared ________ they were required to relocate to a nearby island. In fact, it is only two or three years ________ some islanders moved here.

A．since; after

B．before; since

C．until; that

D．after; before

【推荐2】There is much chance ________ Bill will recover from his injury in time for the race.

A．that	B．which
C．until	D．if

【推荐3】I was about to take part in the basketball match ________ I hurt my left leg.

A．when

B．while

C．as

D．until

【推荐1】Modern science has found that _______ one is using chopsticks, over 30 joints and over 50 muscles are used, which is a favorable stimulation to the brain.

A．since

B．although

C．unless

D．while

【推荐2】Small sailboats can easily turn over in the water ________ they are carefully managed.

A．if

B．when

C．unless

D．because

【推荐3】As Emerson puts it,____ we travel the world over to find the beautiful,we must carry it with us orwe find it not.

A．unless

B．until

C．though

D．because

【推荐2】You must learn to consult your feelings and your reason________you reach any decision. (2013·湖南，23)

A．although	B．before
C．because	D．unless

【推荐3】--- _____________ I toured Zhangjiajie, I was deeply impressed with its beautiful scenery.

A．The first time	B．At first
C．It was the first time	D．For the first time