用所给动词的正确形式填空

小题1:If it is fine tomorrow, Jack ________  a picnic .

小题2:—Where is Jack?

—He with his friends _______________ an important meeting.

小题3:I usually met my friends on weekend and had a great time_________ with each other.

小题4:Hurry up! Don’t keep your mother__________

小题5:My mother asks me  ___________ TV too much.

下列哪项描述可排除前置胎盘()

A．胎盘部分或全部掩盖子宫颈管内口

B．子宫颈内口距胎盘下缘距离>7cm

C．无痛性 * * 出血

D．胎盘定位超声检查时间最好在孕20周以前，因>20周胎盘因胎儿掩盖显示不清

E．检查时无需膀胱充盈