_____ makes a new invention such a wonderful thing is ____ it allows us to do something ____ we could not do before.
A.What; what; what | B.That; that; \ | C.What; that; \ | D.That; what; that |
We can’t take part in the competition ________ we get our student card.
A.before | B.if | C.While | D.as |
It was announced that only when the examination papers were handed in ________to go out of the classroom.
A.the students would be permitted | B.had the students been permitted |
C.would the students be permitted | D.the students had been permitted |
As a result of the heavy snow,two-thirds of the buildings in the area A. need to repair B.needs to repair C.needs repairing D need repairing.
—It’s only ten minutes’ walk; I could have got there on foot.
— Yes. A taxi _______ not at all necessary.
A.was | B.had been | C.has been | D.is |
It was about 5 o’clock in the afternoon _______ they had their supper.
A.that | B.what | C.before | D.when |