1 The farmers______ an insecticide upon the plants to kill the insects and expected a good harvest the next year

A. sprayed             B. spreaded           C. scattered               D. separated

2 The children have gone _______in the woods. The teacher told them to take notes of all the unknown things.

A. examining       B. exploring          C. investigating                D. checking

3 At the meeting, there was a wide_______of opinions on this problem

A. arrange          B. range           C. rank             D. rectangle

4 In a spaceship, one slightest touch might send you_______ in the opposite direction.

A. to float           B. floated           C. floating       D. having floated

5 I've tried very hard to improve my English. But by no means______ with my progress.

A. the teacher is not satisfied            B. is the teacher not satisfied

C. the teacher is satisfied               D. is the teacher satisfied