So much progress ________ made in studies that he is sure to pass the coming examination.
A.is he | B.has he | C.he is | D.he has |
It was 80 years before Christopher Columbus crossed the Atlantic______ Zheng sailed to East Africa
A.when |
B.that |
C.after |
D.since |
It was not until near the end of the letter ______ she mentioned her own plan.
A.where |
B.that |
C.why |
D.when |
It was only after he had read the papersMr. Gross realized the task before him was extremely difficult to complete.
A.when |
B.that |
C.which |
D.What |
An awful accident, however, _____occur the other day.
A.does |
B.did |
C.has to |
D.had to |
It was probably at that moment _____ I understood what kindness really was.
A.that |
B.when |
C.which |
D.what |