1 . You'll start to learn a________ maths when you go to college. （根据首字母单词拼写）

2 . As far as I know, Mark is a ________(caution) shopper who always does some careful research before he buys something valuable. (所给词的适当形式填空）

3 . With the help of my_____________(电子的) brain, using intelligence is what I’m all about.

4 . Why is she so______________(concern) about his attitude to her work?

5 . This dictionary is______________(intend) for students in senior high.

6 . The results prove that the new drugs are_________(effect) against cancer.

7 . It was ________ (possible) for anyone to get in because no one knew the password (密码). (所给词的适当形式填空）

8 . The charming scenery and the hot spring baths combine to make the traveler’s stay there most________ (enjoy). (所给词的适当形式填空)

9 . So _______ （absorb） was Tom in his work that he forgot to inform her of it. (所给词的适当形式填空)

10 . By way of an introduction, I shall explain some of the _______ ( 历史的） background. (根据汉语意思单词拼写)