It isn't easy for us ______ English well.( )
learn
learns
learning
to learn
Could you tell me how I can improve my English?
Sure. _______, you could speak it as much as possible.( )
After all
In the end
By the way
First of all
I went to your home yesterday morning, but you weren't in.
Well, I ______along the river at that time.( )
walked
was walking
am walking
have walked
To feed her little son. Mrs. Smith has to _______ the vegetables and meat.( )
make up
put up
set up
cut up
As far as I know, the robot that can sweep the floor ________ in the 1980s.( )
is invented
invented
was invented
has invented
The man _______ be a doctor in this hospital, but I'm not sure.( )
must
would
can
might