The difficulty lies in ________ they will come to our help immediately.
A. whether B. that C. if D. which
It is recently reported that quite a number of applications ________ from Apple’s official APP. Store are not safe to use.
A. downloading B. downloaded
C. having downloaded D. to be downloaded
Pointing to a small village at the foot of the mountain, he told us that was ________ he was born and brought up.
A. what B. in which C. how D. where
The discovery was made in the 1950s, while the ________ of it was not recognized until half a century later.
A. sacrifice B. difference
C. significance D. insurance
Many of us would agree that improving the countryside through technology has great potentials ______ food development in China.
A. in terms of B. regardless of
C. in spite of D. on account of
It may not work out that one living in an English-speaking country will acquire the language ________.
A. effectively B. fluently
C. automatically D. severely
