compare
A.company | B.continue | C.common | D.concert |
The scientist knew nothing about the matter, because he was always _________ himself in his study.
A.burying | B.devoting | C.focusing | D.concentrating |
He said he _________ his work, and then we needed to wait for him for a little while.
A.just finished | B.was just finishing | C.had just finished | D.was just finished |
How pleasant the picture is to _________!
A.be looked at | B.being looked at | C.looking at | D.look at |
Jack went to college last year, _________ to return home until he achieves his goal.
A.determining not | B.not determined | C.not determining | D.determined not |
— What’s that terrible noise?
— The boys _________ for a party.
A.are preparing | B.have prepared | C.prepare | D.will prepare |