Hi，Tom! you ever the Bird's Nest？
Yes． I have． It's fantastic．（ ）
| A． |
Have，been to |
| B． |
Have， gone to |
| C． |
Did， go to |
"Tom， would you please take out the rubbish？"
"Just a minute， mom， I ________ a phone call．"（ ）
| A． |
make |
B． |
makes |
C． |
am making |
"Do you know ________ the school library closes， Susan？"
"Ten o'clock at night．"（ ）
| A． |
when |
B． |
why |
C． |
who |
The doctor looks tired and sleepy ________ he stayed up late to look after his patients yesterday．（ ）
| A． |
because |
B． |
if |
C． |
unless |
I'm going to choose some online courses with a friend of ________ to improve our English．（ ）
| A． |
me |
B． |
my |
C． |
mine |
"Excuse me， could you tell me where I can buy a guidebook？"
"Sorry， I'm new here． You ________ ask the policeman over there．"（ ）
| A． |
shall |
B． |
can |
C． |
must |