Bob said he was going to join our club but he didn’t. What a shame! He ______ his mind.
A.can’t have changed | B.mustn’t have changed |
C.wouldn’t have changed | D.shouldn’t have changed |
According to the periodic table,still some elements undiscovered.
A.there seem to be | B.it seems to be | C.it seems that | D.here seem |
Calculations, which are astronomically exact, have been madewith the use of computers.
A.possible | B.it possible | C.possibly | D.to be possible |
The man deniedany thing at the supermarket when he was questioned by the police.
A.to have stolen | B.having been stealing | C.having stolen | D.to steal |
“Do you thinkI should attend the lecture?” she asked me.
A.that | B.whether | C.if | D.when |
Some womena good salary in a job instead of staying home, but they decided not to work for the sake of the family.
A.could have made | B.should have made | C.would make | D.must make |