—Where is Helen?
—I’m not sure. Maybe she ________ her baseball lesson.
had
was having
is having
will have
Shanghai is bigger than ______ in Jiangsu and bigger than _______ in China.
The street was very busy because there was ________ traffic.
—I'm feeling so tired now. —stop and have a rest?
The girl is only two years old. You can’t leave her ____________.
The ticket ______ him ¥20.And flying to the USA ________him two days.