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What??s troubling them is ______ enough experienced workers.

   A.that they have to                   B.they have not

   C.their not having                    D.not their having

Her husband died in 1980 and had nothing ______ to her,only ______ her five

   children.

   A.left;to leave   B.leaving;leaving   C.leaving;left     D.left;leaving

The first textbooks ______ for teaching English as a foreign language came out 

  in the 16th century.

  A.to be written    B.written          C.being written     D.having written

Let us not waste ______ time we have left.

A. the little                      B. little                    C. a little                 D. a little more

) He has read the book as many as, if _____ than, five times.?

A. no more                      B. not more               C. no much                D. not much

--- What did he ask you?

--- _____ I would be late. ?

A. That                          B. When                 C. Where                D. Whether?

After ____ seemed like hours he came out with a bitter smile.

A. which  　                     B. it?                      C. what　                         D. that

Cf: ____ nice, the food should be made by adding more sugar.

A. Tasting                         B. Taste                      C. Tasted                          D. To taste

Before he went abroad，he spent as much time as he _____ English.

A. could learning               B. learned                   C. could to learn                D. could learn

____ he was in poor health, he worked just as hard as everyone else.

A. But             B. Although              C. Even if        D. If