There are 61 million “left-behind children” in central and western China,
the adults have to seek jobs in the cities.
A. who B. which C. when D. where
So in the darkness that he didn’t dare to move an inch.
A. frightened was he B. he was frightened
C. was he frightened D. frightened he was
I didn’t know his telephone number, otherwise I him.
A. had telephoned B. would telephone
C. would have telephoned D. telephoned
—Is the money your parents give you enough?
—No, I have to have a part-time job to my school expenses.
A. cost B. pay C. cover D. offer
A computer can’t remember who ; it simply does what .
A. will use it; it is told B. uses it; it has told
C. used it; it is told D. has used it; it told
Emergencies and unexpected situations happen all the time.
A. may B. can C. must D. should
