19.
A.cracks
B.celebartions
C.students
D.crops

18.
A.worker
B.faucet
C.classmate
D.enjoy

People have used leather to make shoes since hundreds of years.
A.have used
B.to make
C.since
D.of

X. Mark the letter A, B, C or D on your answer sheer to indicate the correct answer in each of the following questions.
My best friend has a great ________and everyone likes her.
A.person
B.personality
C.impersonal
D.personal

X. Mark the letter A, B, C or D on your answer sheer to indicate the correct answer in each of the following questions.
We suggest that all receipts_________ to the committee for approval.
A.have to submit
B.submitted
C.be submitted
D.submit

During the five- decade history the Asian Games have been advancing in all aspects.
A.holding at
B.holding back
C.holding to
D.holding by

X. Mark the letter A, B, C or D on your answer sheer to indicate the correct answer in each of the following questions.
If we____________ wasting water, there will be a shortage of fresh water in a few decades.
A.get on
B.come on
C.go on
D.hold on

X. Mark the letter A, B, C or D on your answer sheer to indicate the correct answer in each of the following questions.
We________ Dan a new rucksack for his summer holiday.
A.already have got
B.get already
C.already get
D.have already got

X. Mark the letter A, B, C or D on your answer sheer to indicate the correct answer in each of the following questions.
I hoped this book would help me with my history project, but in fact it wasn’t very ______.
A.informative
B.informed
C.informer
D.information

X. Mark the letter A, B, C or D on your answer sheer to indicate the correct answer in each of the following questions.
We can supply materials __________________Thursday morning next week, so let's meet at the school _____________8:00 a.m.
A.on/at
B.at/around
C.on/in
D.ϕ /until