7A_STUDENT´S BOOK_ PAGE 144_GRAMMAR BANK_KEY

7A  GRAMMAR BANK

A.

1.       She might have had an argument with her boyfriend.

2.       Ben must have read my email.

3.       Sam and Ginny can´t have got lost.

4.       You can´t have seen Ellie yesterday.

5.       John might not have seen you.

6.       Lucy must have bought a new car.

7.       Alex can´t have been very ill.

8.       They might not have received the invitation.

9.       You must have used too much sugar.

10.   It can´t have been my phone.

B.

1.       should have/ought to have written

2.       shouldn´t have gone/oughtn´t to have gone

3.       shouldn´t have invited/oughtn´t to have invited

4.       shouldn´t have bought/oughtn´t to have bought

5.       should have gone/ought to have gone

6.       should have taken/ought to have taken

7.       shouldn´t have sat/oughtn´t to have sat