TENSES
While we __________ (walk) home from school yesterday, it suddenly started to rain heavily.
were walking
You __________ wear a uniform at our school—it is an official rule that everyone must follow.
must / have to
Our family always goes on vacation __________ July, but this year we are leaving __________ Monday morning.
in ... on...
This reading comprehension test was much __________ (difficult) than the vocabulary quiz we took last week.
more difficult
Sarah finished her math exam much __________ (quickly) than the rest of the class.
more quickly
Look at those dark gray clouds in the sky! It __________ (rain) in a few minutes.
is going to rain
Tomorrow is Saturday, so we __________ wake up early for school.
don't have to
The terrified cat ran __________ the street and hid __________ the small wooden shed.
across... under / inside...
Yesterday was the __________ (bad) day of the month because I lost my jacket and missed the bus.
worst
Out of all the athletes in the track meet, David ran the __________ (fast).
fastest
By the time the teacher entered the classroom, all the students __________ (already / sit) at their desks.
were already sitting
Excuse me, Mr. Davis, __________ I please borrow a pencil from your desk?
may / could / can
To get to the principal's office, walk __________ the hallway, go __________ the stairs, and turn left.
along / down... up / down...
Learning a new language is far __________ (useful) than playing video games all afternoon.
more useful
Please speak __________ (clearly) so that the students in the back row can hear you.
more clearly