According to the latest BBC news, a five-year-old boy from England ______ the youngest computer specialist in the worl（ ）
A．becameB．becomes
C．had becomeD．has become
- You seem busy these days．
- Yes．I’m writing a story．You know, it’s really not easy to write ______ with attractive plots．（ ）
A．thisB．oneC．itD．that
With doubts ______ through my mind, I felt it necessary to carry out a research．（ ）
A．to runB．run
C．runningD．having run
Every Monday, my English teacher would cheerfully ask me ______ my weekend had been．（ ）
A．thatB．ifC．whatD．how
- The zookeeper was really annoyed with me．
- How could he have been if you ______ stones at the animals?（ ）
A．didn’t throwB．don’t throw
C．hadn’t thrownD．haven’t thrown
We have an adviser on hand in this activity ______ you have any worries or problems．（ ）
A．whenB．now that
C．thoughD．in case
