Don’t touch your eyes, nose and mouth, because they aren’t covered by skin and can ________ the virus easily.
A.pick up | B.take up |
C.make up | D.bring up |
His mother happened _______ when his program was shown on Channel Young.
A.watching TV | B.to watch TV |
C.to be watching TV | D.being watching TV |
By the time he was ten, Edison _________ experiments in chemistry.
A.had already done | B.already had done |
C.was already doing | D.already did |
The businessperson wanted to sell his goods fast; ______, he chose his partner with great care.
A.therefore | B.otherwise |
C.for | D.however |
Do you know the man____ is talking with Tom?
A.which | B.who | C.whom | D.whose |
A dictionary is a book ______ gives the meanings of words.
A.which | B.who | C.whom | D.whose |