1 . The foreign minster will make an ________ (office) visit to Paris. (所给词的适当形式填空)

2 . The company should take________ (effect) measures to solve the problem. (所给词的适当形式填空)

3 . There are________ (variety) butterflies and flowers in the attractive garden. (所给词的适当形式填空)

4 . It’s a matter of time to find a ________ (suit) assistant to take the place of him. (所给词的适当形式填空)

5 . You need to do some ________ (challenge) problems before you become an expert in this field. (所给词的适当形式填空)

6 . A school has honored one of its brightest and most _________( promise) former pupils. (所给词的适当形式填空)

7 . The sight is_________(impress) and it is hugely popular with tourists. (所给词的适当形式填空)

8 . Having been a responsible volunteer for many times in China, I do believe that I’m the ________ (suit) person that you want. (所给词的适当形式填空)

9 . Those ________(poison) chemicals contained in tobacco can cause a lot of diseases, such as heart problems and lung cancer. (所给词的适当形式填空)

10 . Yuan Longping was a Chinese ________(agriculture) scientist and educator, known for developing the first hybrid rice varieties in the 1970s. (所给词的适当形式填空)