----- “Where is Mother.”
------ “She is still in the kitchen. She _______ the housework all morning.”
A.is doing | B.was doing | C.has done | D.has been doing |
No one but the experts in this field can _____ the difference between them.
A.recognize | B.speak | C.spot | D.predict |
—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
A.can; must | B.can; may | C.must; can | D.may; must |
The meeting we had ________ to _______ us finally.
A.looked forward; disappointing | B.been looked forward; disappointed |
C.looked forward; disappointed | D.been looked forward; disappointing |
The great _____ of this computer is that it’s so cheap compared to the others.
A.power | B.strength | C.energy | D.force |
The difficulty we now meet with is ___________ we can persuade him to tell the truth.
A.whether | B.that | C.what | D.why |