Please do me a favor — _______ my friend Mr. Smith to Youth Theater at 7:30 tonight.
A. to invite B. inviting
C. invite D. invited
This is not my story, nor ______ the whole story. My story plays out differently.
A. is there B. there is C. is it D. it is
_______ you may have, you should gather your courage to face the challenge.
A. However a serious problem
B. What a serious problem
C. However serious a problem
D. What serious a problem
It is uncertain ________ side effect the medicine will bring about, although about two thousand patients have taken it.
A. that B. what C. now D. whether
A lot of language learning,________ has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.
A. as B. it C. which D. this
Between the two parts of the concert is an interval,________ the audience can buy ice-cream.
A. when B. where C. that D. which
