Jim， what did I say just now？
Sorry， I don't know． I _________ the math problem．（ ）
| A． |
think about |
B． |
thought about |
| C． |
was thinking about |
D． |
has thought about |
He speaks English very well because he in the US for 20 years．（ ）
| A． |
lives |
B． |
lived |
C． |
has lived |
D． |
had lived |
Mum， I play the computer game for a while？
I'm afraid you have to finish your homework first．（ ）
| A． |
must |
B． |
need |
C． |
will |
D． |
may |
Tom has decided a part﹣time job after he graduates from school．（ ）
| A． |
do |
B． |
to do |
C． |
did |
D． |
doing |
The woman is standing under the tree is my aunt．（ ）
| A． |
what |
B． |
which |
C． |
who |
D． |
where |
Shall we go now？
No，let's wait the rain stops．（ ）
| A． |
until |
B． |
when |
C． |
if |
D． |
as |