Choose the best answer

Question 47: We should buy_
A. cool
electronic devices as they last longer.
C. quality
_stores as used clothes are cheaper.
C. thrift
D. mall
B. heap
Question 48: I prefer to buy things in
A. local
B. in temet
Question 49: This PC may slow_______
A.up
B. off
Question 50: The kids love_
A. part
B. section
Question 51: In your email, you should say what you want the store_
A. to do
B. to doing
C. doing
Question 52:
doing the dishes.
A. Before
if you use it for too long.
C. out
-playing with puppets in class.
C. role
B. After
Question 53: The customer says she bought the skirt_
A. on
B. in
Question 54: I think the purple one is the_
A. most pretty
D. do
that they have got a dishwasher, it's no longer time-consuming
B. more pretty
Question 55: They offered to fix my broken phone_
A. for
B. with
D. careful
C. Then
_December 21".
C. off
D. under
D. battle
D. Now
D. since
among the three coats here.
C. prettier
free
C. by
D. prettiest
D. off