He insisted that the earth ________ around the sun.
| A．went | B．goes | C．go | D．should go |
_____ I heard his voice trembling did I realize what trouble he was in.
| A．Only when | B．Until when | C．No sooner had | D．Hardly had |
—Don’t always answer me with a simple “Yes” or “No”. Explain ______possible.
—OK. I’ll try my best.
| A．whatever | B．whenever | C．however | D．whoever |
This is such a wonderful film ______ we have never seen before.
| A．that | B．as | C．which | D．what |
—Excuse me. Did you notice whether the No. 108 bus had gone by?
—Not ____ I’ve been standing here.
| A．as | B．when | C．since | D．while |
___ the Internet is bridging the distance between people, it may also be breaking some home or will cause family problems.
| A．When | B．While | C．If | D．As |