Scientists are convinced_____the positive effect of laughter_____physical and mental health.
| A．of; at | B．by; in | C．of; on | D．on;at |
After the class was over, the student apologized ___ the teacher ____ his coming late.
| A．for; to | B．to; with | C．with; to | D．to; for |
The police came in __________ the thief attempted to rush out of the store.
| A．at the moment | B．the moment | C．for the moment | D．at any moment |
----Do you take _______possession of the jewels?
----No. My mother is in ________possession of them.
| A．the; the | B．the; / | C． /; / | D． /; the |
Beneath our feet ______ that our life depends on for food and clothing.
| A．the earth lay | B．the earth lies | C．lie the earth | D．lies the earth |
_______, Jack couldn’t get the door open. He had to dial 119.
| A．As he might try | B．Try as he might | C．As might he try | D．Might as he try |