As far as I know， the robot that can sweep the floor ________ in the 1980s．（ ）
| A． |
is invented |
B． |
invented |
| C． |
was invented |
D． |
has invented |
Which word of the following doesn't have the same stress as the others？（ ）
| A． |
Wisdom． |
B． |
Suggest． |
C． |
Stranger． |
In the following words，which underlined letter has a different sound from the others？（ ）
| A． |
fact |
B． |
attract |
C． |
alive |
Which pair of the words with the underlined letters has the same sound？（ ）
| A． |
breath meat |
B． |
huge hug |
| C． |
cheat chess |
D． |
|
Here is a survey（调查） about how the 1，000 students from No．2 Middle School go to school on weekdays．One third of the students going to school by bike are girls．Then according to the form below，_____boys go to school in the same way．（ ）
| By bus |
By bike |
By car |
On foot |
| 40% |
|
36% |
9% |
| A． |
150 |
B． |
100 |
C． |
50 |
Everyone should pay attention to safety．To keep yourself safe in the P．E．class you are
supposed to _______．
①stretch before exercising
②wear running shoes and comfortable clothes
③push other students on purpose
④drink much water immediately after doing sports
⑤protect your knees and head when skating．
| A． |
①②⑤ |
B． |
②③⑤ |
C． |
②③④ |
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