The great success of this program has been largely_____ the support given by the 10 local business men.

＿＿＿so many careless mistakes in his writing, Tom was told to write another passage carefully.

Tickets are _____at the box office only for the next two days, so you’d better go there quickly. [ ]

25The construction of the two new railway lines____by now

Can we get everything ready by the weekend?—It all depends on ______ we can get Mr. Green’s co-operation.