virtual practice

Trust ( ) the safety of food and pharmaceutical products originating from China ( ) by a number of recent consumer scares around the world, prompting the Japanese government in May ( ) on manufacturers and importers to thoroughly inspect Chinese products.

In the United States, poisonous chemicals ( ) in many Chinese products, ( ) with pet food ( ) many cats and dogs in March, and domestic trading companies started ( ) imported products ( ) a poisonous chemical was discovered in some Chinese toothpaste this month.

1. a. at b. in c. with d. by
2. a. has shaken b. has been shaken c. is shaken d. shakes
3. a. to call b. calling c. for calling d. to calling
4. a. found b. are found c. were found d. have found
5. a. began b. who began c. which was beginning d. beginning
6. a. that killed b. killed c. who killed d. being killed
7. a. check b. to checking c. for checking d. to check
8. a. when b. after c. before d. while