--My MP4 player isn’t in my bag.
--Where _____ you have put it?
| A．can | B．must | C．should | D．would |
The boys followed the marks that they ________, until finally they found their way back to the campsite.
| A．left | B．have left | C．had left | D．have been left |
________ their heavy load, the two brothers walked along the river bank.
| A．Carrying | B．Carried | C．To carry | D．Carry |
Research shows that teenagers ________ talk about their day with family members at the dinner table are less likely to engage in high-risk behavior.
| A．what | B．who | C．whom | D．\ |
Jane had just finished her homework ________ her mom asked her to practice playing the violin yesterday.
| A．when | B．while | C．after | D．before |
It’s said that the heaviest man in this city, _________ 1,345 pounds, has been sent to hospital to receive medical treatment.
| A．weighing | B．to weigh | C．weighed | D．weigh |