He said it was this classroom _______ he found his lost watch and _____ he would take good of it from then on. 
| A．that; that | B．when; what | C．that; what | D．where; that |
Go and study in your room, ____ it to me to do the dishwashing.
A Get B Remain C LeaveD Send
Steve is very strong and healthy. Strangely enough, he ____ have been infected by HINI virus.
A would B mustC shouldD might
. I can’t receive your phone call at 8 o’clock tomorrow, because I ____ the meeting.
A am attending B will attend C will be attendingD am to attend
Tom first met Lucy three years ago. She ____ as a teacher in a high school.
A has workedB was working C is working D had worked
The young lady stopped and looked around as if_____ whether she was being followed.
A seeing B to have seen C having seen D to see