I know a little bit about the city as I __________ there for one year in my youth.
A. am studying B. had studied C. studied D. have studied
While working in the countryside, the students a great deal of knowledge on plant life.
A. looked up B. picked up C. put up D. called up
Criticism and self-criticism _____ necessary _____ it helps us to correct mistakes.
A. is, in that B. are, in that C. is, in which D. are, at that
Running a company is not _______ a matter of hiring people — they also need to be trained.
A. simply B. partly C. seriously D. equally
—What made ber so sad? —______a good chance to go abroad.
A. Miss B. Missed C. Missing D. Being missed
You can come here to ask me ________ if you have any questions.
A. at one time B. at a time C. at any time D. all the time
