--- I think this accident happened for many reasons.

    --- Richard is partly to blame,        way you look at it.

       A．what B．which       C．whatever   D．whichever

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Though having discussed it for long, they still haven’t reached an agreement       they should pour more money into the project.

       A．that   B．if      C．whether    D．what

You can’t complain of being lonely          you don’t make an effort to meet people and make friends with them.

       A．while       B．when C．whenever  D．though

All of a sudden, I felt dizzy _______ my room started to spin.

A. as though                        B. so that               C. as                    D. even though

---- How did you deal with the order?

   ---- I handed it to ______ I think is in charge of sales.

A. who                         B. when                       C. whoever                   D. whomever

---- we will take the conditions into careful consideration ______ you have attached to this contract.

   ---- Thanks. Wish our future cooperation pleasant.

A. after                        B. when                       C. what                        D. which

After graduation I hunted for jobs here and there, meeting with many setbacks,_______ I obtained a vacant post in a small business.

A. though                     B. in that                      C. unless               D. until

Scientists generally agree that Earth’s climate will warm up over the next 50 to 100 years _________ it has warmed in the 20,000 years since the Ice Age.

A. as long as       B. as much as         C. as soon as       D. as well as

We got lost in the forest and decided to remain ________ we were and waited for rescue.

A. where             B. what           C. how               D. who

We all need knowledge from the past — ______ it comes from personal experience or from studying history. It is our only guide to the future.

A. as                       B. whether            C. how                       D. when