Although he knew little about the work done in the field, he succeeded ____other more experienced experimenters failed.
| A．which | B．that | C．what | D．where |
--- How did you learn to speak English so well?
--- By practicing English I had a chance.
| A．whatever |
| B．however |
| C．whenever |
| D．whoever |
Mr. Li made up his mind to devote all he could his oral English before going abroad.
| A．improve |
| B．to improve |
| C．improving |
| D．to improving |
Teenagers who discover they were often search for their biological parents when they are old enough.
A.adapted
B. adopted
C. brought up
Mr. Smith,of the speech, started to read a novel.
| A．tired; boring |
| B．tiring; bored |
| C．tired; bored |
| D．tiring; boring |
I couldn’t . The line was busy.
| A．go by |
| B．go through |
| C．get in |
| D．get through |