The drill in Antarctica dragged on slowly because of lack of money, equipment breakdowns, environmental _____ and severe cold.
A.concerns
B.assumption
C.occupations
D.ignorance
Can you show me a case this phrase is often misused by Chinese students, Mr. Brown?
A.when B.that C.where D.what
—What on earth makes you apply for the position as a guide?
—This is the job that I .
A.looked for B.had looked for
C.will look for D.have been looking for
The students entered the classroom，smiling and________，and ______ down to have their lessons.
A.talked；sat B.talking；sitting
C.talking；sat D.talked；sitting
He kept a little notebook, in which the names and addresses of his friends.
A.wrote B.was writing
C.were written D.was written
that her mother would come back soon, the girl calmed down.
A.Having convinced B.Being convinced
C.Convincing D.Convinced
