1 . From there, you can take a boat to your accommodate and then spend three days ______ (explore) the rainforest with a local guide. (所给词的适当形式填空)

2 . Usually at the beginning of school, the noise of desks ______ and closed could be heard in the street.

A．opened

B．being opened

C．opening

D．to be opened

3 . I’m sure she will succeed in __________ the competition.

A．to win

B．win

C．winning

D．won

4 . As a salesman, he understood the importance of ________ (建立) a close relationship with customers. (根据汉语提示单词拼写)

5 . He was impatient and kept________ (tap) his fingers on the table while the boss was talking. (所给词的适当形式填空)

6 . Both his parents and he are looking forward to ______ (see) each other. (所给词的适当形式填空)

7 . The ancient town is so peaceful that it is worth ______ (visit) a second time.(所给词的适当形式填空)

8 . She has trouble ________ (辨别) the differences between the twins.（根据汉语提示拼写单词）

9 . The immigrants spent all the time________(寻找，寻求) their fortune in the gold rush. （根据汉语提示单词拼写）

10 . Before going abroad, he devoted all he could________his oral English.

A．to improve

B．improving

C．to improving

D．with improve