She told me that ______ was needed at that time was some good luck.
A.it | B.what | C.this | D.as |
Last term our maths teacher set so difficult an examination problem _____ none of us worked out.
A.that | B.as | C.so that | D.which |
How pleased the detective was _____ what his customer told him!
A.hearing | B.heard | C.to hearing | D.to hear |
Mrs. Brown was much disappointed to see the washing machine she had _____ went wrong again.
A.it repaired | B.to be repaired | C.to repair | D.repaired |
-Has Tommy finished his homework yet?
-I have no idea; he ____ it this morning.
A.was doing | B.had been doing | C.has done | D.did |
-If you have time tonight,I’d like to invite you to a ball.
-That’s very nice of you,but are you ____?
A.free | B.careful | C.serious | D.true |