He went to bed early ___ he could improve his immune system.
A. so that
B. in order to
C. to
D. for

Random Topics:
Frequency AdverbsPrepositions & Modal VerbsPhrasal Verb Put & GoWill or Going toPresent Tense (Negatives and Questions)Grammar Double Object VerbsZero & First ContidionalZero and First Conditionals3rd Person SingularFuture Continuous, Future Perfect and Future Perfect ContinuousOther quiz:
Question Tags › Viewthey’re watching the film on TV tonight, ….?
A. aren’t they?
B. don’t they?
C. are they?
D. isn’t it?
Grammar › View
I ____ for the information about the differences between further education and higher education all this morning.
A. had searched
B. have been searched
C. have been searching
D. have searched
Grammar › ViewI wouldn’t accept if you asked me to do the assignment for you.
A. If you were to ask me to do the assignment for you, I wouldn’t accept.
B. If you ask me to do the assignment for you, I will accept.
C. If you ask me to do the assignment for you, I won’t accept.
D. Unless you ask me to do the assignment for you, I won’t accept.
Present Perfect › View
My mother has ______________ gone to a museum.
A. for
B. since
C. never
D. have
