... can / could / have to

نكته
Can 1- can توانايي در زمان حال را بيان مي كند.
2- بعد از can شكل ساده فعل قرار مي گيرد.

1) Can John………here by lunch time?
a) got
b) get
c) gets
d) getting

نكته
could
توانايي در زمان گذشته رابيان مي كند.
و بعد از آن شكل ساده فعل قرار مي گيرد.

1)I can swim very well , but I ……. swim very well before .
a) can’t
b ) shouldn’t
c) couldn’t
d) mustn’t

2) All the students could ……….. the questions easily yesterday.
a) answers
b) answer
c) to answer
d) answering

3) Could you.…..English 4 years ago ?
a) wrote
b) to write
c) writing
d) write

4) He couldn’t…………....how jet engines work.
a) explains
b) explain
c) to explain
d) explaining

نكته
( have to , has to )
اجبار در زمان حال را بيان مي كند و بعد از آن شكل ساده فعل قرار مي گيرد

1) I have to …. an appointment with the dentist.
a)makes
b) make
c) to make
d) making

2) Does she … speak French in her job ?
a) has to
b) had to
c) have to
d ) can

3) She has to…….….her lessons carefully.
a) study
b) studied
c) to study
d) studying

4) Does John..…help his mother at home?
a) have to
b) has to
c) had to
d) can

نكته
“مجبور بودن had to ”
اجبار در زمان گذشته را بيان مي كند. وگذشته has to , have to مي باشد وبعد از آن بايد شكل ساده فعل قرار داد.

1)They didn’t know the address. They …. ask a policeman.
a) have to
b ) can
c) had to
d ) has to

2) Reza was late for class. He… see the teacher.
a) has to
b) can
c) should
d) had to

3) The old man was sick. He had to …..…. the doctor.
a) saw
b) see
c) sees
d) seen

4) I had to……..for her for three hours yesterday.
a) wait
b) waiting
c) waited
d) waits

نكته
“should” كاربرد
بايد اخلاقي و اجتماعي است. و بعد از آن شكل ساده فعل قرار مي گيرد.

1) We have a test at 7 o`clock. We … get up early.
a) should
b) could
c) had to
d) has to

2) They don’t know the address. They should …. a policeman.
a) asks
b) to ask
c) asked
d) ask

3) You like to learn English. You should… hard.
a) studied
b) to study
c) study
d) studying

4)The student wants to understand the question. He should ……...carefully.
a) listened
b) to listen
c) listening
d) listen