完形填空Pullbrough Book is a nature reserve of English .Last wee

完形填空
Pullbrough Book is a nature reserve of English .Last week I went there with my class on a school trip for __1___.Our field teacher said we might see some___2__if we were lucky .
We set off down a __3__path into an open field ,__4__was covered with yellowy moss .Our field teacher said it was ___5___the rabbits had eaten most of the grass and moss had grown in the bare patches.The ground was soft to walk on and was not at all muddy.
__6__the edge of the field was a large __7__made of wire of wire of wire mesh .Our field teacher called it a "rabbit proof "fence whose wire mesh __8__three metres feet under the ground to prewent rabbits tunneling.
We went though the gate onto a damp earth path .We were all chattering excitedly when someone__9__"Shhh look"!
there was a hushed __10__and then everyone saisd ‘Ooh!'It was a whole herd of deer!I never __11__we could spot any unusual animals
because we were being far too __12__.In a short while one of them away and the excitement of the deer faded .
We came to another__13__.Now we found we were in a large horrible looking stretch of mud .__14__,several boys took pleasure in playing with the mud.The field teacher said you could lose your shoes in the mud.I went__15__to see if it was true.Yes,it was!I almost lost my shoe but I made it across.
We finally saw the River Arun in the sun.It was wonderful although it was not quite as big as I had expected it to be and the current did not seem__16__.We did a sketch of the river.We also did a(n) __17__to see how fast the river was flowing.We threw dog biscuits into the river and timed__18__it took to float ten metres.
At about five we returned to the entrance.I must say it was a great day__19__but I would have preferred to go there when it was__20__.
1 A.physics B.geography c.history D.politics
2 A.sheep B.cows c.rabbits D.deer
3 A.muddy B.dangerous C.smooth D.rocky
4.A.where B.that C.which D.it
5.A.because B.where C.how D.since
6.A.Around B.To C.At D.From
7.A.board B.fence C.channel D.path
8.A.went B.carried C.sent D.grew
9.A.cried B.shouted C.murmured D.whispered
10.A.excitement B.silence C.smile D.gesture
11.A.believed B.promised C.thought D.heard
12.A.noisy B.happy C.anxious D.careful
13.A.mountain B.gate C.reserve D.park
14.A.Therefore B.Instead C.Though D.However
15.A.nervously B.safely C.eagerly D.excitedly
16.A.fast B.slow C.experiment D.interesting D.boring
17.A.sketch B.experiment C.operation D.attempt
18.A.how often B.how fast C.how hard D.how long
19.A.off B.in C.out D.along
20.A.wetter B.drier Csunnier D.windier

1b
2c
3a
4c
5a
6c
7b
8a
9b
10b
11c
12b
13c
14d
15a
16d
17b
18b
19a
20