[ Grammar for TOEFL ]
_____ test positive for antibiotics when tanker trucks arrive at a milk processing plant, according to federal law, the entire truckload must be discarded.
A. Should milk
B. If milk
C. If milk is
D. Milk should

Random Topics:
Adjectives and PrepositionsPresent TensesGrammar - to beGrammar- Later/LatterPersonal Pronouns and VerbPresent Perfect Tense and Simple Past TenseLinking Words and ConjunctionPerfect and Past TenseLanguage Features of an Opinion ArticleQuantifiers with NounsOther quiz:
Modal Verbs › ViewYou look very tired. You ________ take a rest.
A. Could
B. Should
C. Shouldn’t
D. Can
Modal Verbs › View
She …. make her bed and then she … hang out with friends.
A. has to/can
B. can’t/can
C. mustn’t/can’t
D. doesn’t have to/can
Grammar › ViewIt’s important _____(eat) vegetable and at least, three pieces of fruit everyday.
A. to eat
B. eating
Articles & Quantifiers › View
This grammar book has a ____________ information.
A. lots
B. a great many
C. a great deal of
D. a number of
