These diagrams are especially helpful when we have a concrete problem ______ at hand.
#90962
A
be solved
B
to solve
C
solved
D
being solved
推荐题目
At school, it is essential that every child ______ equally regardless of family background.
#96183
A
treating
B
treated
C
be treated
D
is treated
_______ from her parents, she was left with her two young sisters--aged three and seven.
#97247
A
Being separated
B
Having been separated
C
Having separated
D
Had been separated
Tim Bemers-Lee is generally considered ____ the World Wide Web, on which all the information is shared by all.
#98648
A
to have founded
B
having founded
C
founding
D
to found
It was __________ computer games that cost the young man a lot of precious time that heshould __________ on his lessons．
#93673
A
to play; be spending
B
playing; spend
C
played; have spent
D
playing; have spent
Generally speaking, _______ according to the directions, the drug has no side effect.
#94901
A
if taking
B
if taken
C
if to take
D
if being taken