[ Grammar ]
I don’t know where Mrs Black is. She isn’t in the kitchen, so she _____ in the garden.
A. should have worked
B. must work
C. needs to work
D. must be working

Random Topics:
ModalSimple Future - PassivePresent Simple, Present Continuous or Present PerfectParticiple - ing/ edSimple Present ProgressivePrepositions after Verbs and AdjectiveConstrative Conjunction-ed or -ingWill and Will notToo or EnoughOther quiz:
Comparison Degree › ViewShe has the ……………… car among her friends
A. More amazing
B. Great
C. Coolest
D. Better
Modal Verbs › View
We _____ call a taxi because the buses from the airport weren’t running.
A. should
B. must
C. had to
D. have to
Grammar › ViewDon’t step on the grass!
A. declarative
B. interrogative
C. imperative
D. exclamatory
Comparison › View
My book is as …………………. as yours.
A. good
B. well
C. better
D. the best