If the streets would have(a) been clearly(b) marked it would not have(c ) taken us so long to find his house (d) .
It is almost always desirable to increase the yield of a crop if ... increases are not also necessary in encrgy, labor, and other inputs of crop production.
The manager asked (a) the worker why was he(b) again disturbing(c ) the schedule of production(d) .
For nearly half a centuryক he lived in that village, sharingখ the joys and sorrows of the people there, but later he left the village and has not been heard of sinceগ. No errorঘ