A.does
B.do
C.has done
D.have done
[单选题]There are[various] ways of solving the problem.A.variedB.changedC.different
[单选题]The harder Itried, _____ it seemed to solve that math problem.A.the impossi
[单选题]The harder Itried, _____it seemed to solve that math problem.A.the impossib
[单选题]His experience abroad provides a wider __________on the problem.A.privilege
[单选题]I tried hard, but I couldn’t find the _____to the problem.A.solutionB.helpC
[单选题]The game requiresus to find out two [simple] but effective ways to solve th
[单选题]The game requiresus to find out two [simple] but effective ways to solve th
[单选题]The game requiresus to find out two [simple] but effective ways to solve th
[单选题]Solving a problemcan be broken down into several steps.First,the problem mu
[单选题]Solving a problemcan be broken down into several steps.First,the problem mu